Home / 138,319.72-207,510.68-42,265.32

Finding the Fourth Proportional to 138,319.72, 207,510.68 and 42,265.32

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Solution

The fourth proportional to 138,319.72, 207,510.68 and 42,265.32 is: 63,407.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,319.72 : 207,510.68 = 42,265.32 : x
  2. Step 2: Convert to fraction form
    138,319.72/207,510.68 = 42,265.32/x
  3. Step 3: Cross multiply
    138,319.72x = 207,510.68 × 42,265.32
  4. Step 4: Simplify right side
    138,319.72x = 8,770,505,293.62
  5. Step 5: Solve for x
    x = 8,770,505,293.62/138,319.72
  6. Step 6: Final answer
    x = 63,407.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.