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Finding the Fourth Proportional to 134,437.52, 185,520.51 and 74,007.68

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Solution

The fourth proportional to 134,437.52, 185,520.51 and 74,007.68 is: 102,128.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,437.52 : 185,520.51 = 74,007.68 : x
  2. Step 2: Convert to fraction form
    134,437.52/185,520.51 = 74,007.68/x
  3. Step 3: Cross multiply
    134,437.52x = 185,520.51 × 74,007.68
  4. Step 4: Simplify right side
    134,437.52x = 13,729,941,609.91
  5. Step 5: Solve for x
    x = 13,729,941,609.91/134,437.52
  6. Step 6: Final answer
    x = 102,128.79

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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.