Home / 111,213.74-153,512.38-67,606.14

Finding the Fourth Proportional to 111,213.74, 153,512.38 and 67,606.14

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Solution

The fourth proportional to 111,213.74, 153,512.38 and 67,606.14 is: 93,319.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,213.74 : 153,512.38 = 67,606.14 : x
  2. Step 2: Convert to fraction form
    111,213.74/153,512.38 = 67,606.14/x
  3. Step 3: Cross multiply
    111,213.74x = 153,512.38 × 67,606.14
  4. Step 4: Simplify right side
    111,213.74x = 10,378,379,454.01
  5. Step 5: Solve for x
    x = 10,378,379,454.01/111,213.74
  6. Step 6: Final answer
    x = 93,319.22

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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.