Home / 111,402.12-153,708.48-63,005.16

Finding the Fourth Proportional to 111,402.12, 153,708.48 and 63,005.16

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Solution

The fourth proportional to 111,402.12, 153,708.48 and 63,005.16 is: 86,932.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,402.12 : 153,708.48 = 63,005.16 : x
  2. Step 2: Convert to fraction form
    111,402.12/153,708.48 = 63,005.16/x
  3. Step 3: Cross multiply
    111,402.12x = 153,708.48 × 63,005.16
  4. Step 4: Simplify right side
    111,402.12x = 9,684,427,375.76
  5. Step 5: Solve for x
    x = 9,684,427,375.76/111,402.12
  6. Step 6: Final answer
    x = 86,932.16

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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.