Home / 111,501.46-153,999.73-73,431.19

Finding the Fourth Proportional to 111,501.46, 153,999.73 and 73,431.19

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Solution

The fourth proportional to 111,501.46, 153,999.73 and 73,431.19 is: 101,419.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,501.46 : 153,999.73 = 73,431.19 : x
  2. Step 2: Convert to fraction form
    111,501.46/153,999.73 = 73,431.19/x
  3. Step 3: Cross multiply
    111,501.46x = 153,999.73 × 73,431.19
  4. Step 4: Simplify right side
    111,501.46x = 11,308,383,717.87
  5. Step 5: Solve for x
    x = 11,308,383,717.87/111,501.46
  6. Step 6: Final answer
    x = 101,419.15

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.