Home / 250,128.47-375,203.12-72,635.51

Finding the Fourth Proportional to 250,128.47, 375,203.12 and 72,635.51

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Solution

The fourth proportional to 250,128.47, 375,203.12 and 72,635.51 is: 108,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,128.47 : 375,203.12 = 72,635.51 : x
  2. Step 2: Convert to fraction form
    250,128.47/375,203.12 = 72,635.51/x
  3. Step 3: Cross multiply
    250,128.47x = 375,203.12 × 72,635.51
  4. Step 4: Simplify right side
    250,128.47x = 27,253,070,549.62
  5. Step 5: Solve for x
    x = 27,253,070,549.62/250,128.47
  6. Step 6: Final answer
    x = 108,956.29

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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.