Home / 134,629.61-185,781.28-74,200.06

Finding the Fourth Proportional to 134,629.61, 185,781.28 and 74,200.06

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Solution

The fourth proportional to 134,629.61, 185,781.28 and 74,200.06 is: 102,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,629.61 : 185,781.28 = 74,200.06 : x
  2. Step 2: Convert to fraction form
    134,629.61/185,781.28 = 74,200.06/x
  3. Step 3: Cross multiply
    134,629.61x = 185,781.28 × 74,200.06
  4. Step 4: Simplify right side
    134,629.61x = 13,784,982,122.88
  5. Step 5: Solve for x
    x = 13,784,982,122.88/134,629.61
  6. Step 6: Final answer
    x = 102,391.90

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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.