Home / 138,127.62-207,345.06-71,549.94

Finding the Fourth Proportional to 138,127.62, 207,345.06 and 71,549.94

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Solution

The fourth proportional to 138,127.62, 207,345.06 and 71,549.94 is: 107,404.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,127.62 : 207,345.06 = 71,549.94 : x
  2. Step 2: Convert to fraction form
    138,127.62/207,345.06 = 71,549.94/x
  3. Step 3: Cross multiply
    138,127.62x = 207,345.06 × 71,549.94
  4. Step 4: Simplify right side
    138,127.62x = 14,835,526,602.30
  5. Step 5: Solve for x
    x = 14,835,526,602.30/138,127.62
  6. Step 6: Final answer
    x = 107,404.49

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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.