Home / 138,659.16-207,940.08-38,792.52

Finding the Fourth Proportional to 138,659.16, 207,940.08 and 38,792.52

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Solution

The fourth proportional to 138,659.16, 207,940.08 and 38,792.52 is: 58,175.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,659.16 : 207,940.08 = 38,792.52 : x
  2. Step 2: Convert to fraction form
    138,659.16/207,940.08 = 38,792.52/x
  3. Step 3: Cross multiply
    138,659.16x = 207,940.08 × 38,792.52
  4. Step 4: Simplify right side
    138,659.16x = 8,066,519,712.20
  5. Step 5: Solve for x
    x = 8,066,519,712.20/138,659.16
  6. Step 6: Final answer
    x = 58,175.17

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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.