Home / 138,407.26-207,587.35-38,577.39

Finding the Fourth Proportional to 138,407.26, 207,587.35 and 38,577.39

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Solution

The fourth proportional to 138,407.26, 207,587.35 and 38,577.39 is: 57,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,407.26 : 207,587.35 = 38,577.39 : x
  2. Step 2: Convert to fraction form
    138,407.26/207,587.35 = 38,577.39/x
  3. Step 3: Cross multiply
    138,407.26x = 207,587.35 × 38,577.39
  4. Step 4: Simplify right side
    138,407.26x = 8,008,178,160.02
  5. Step 5: Solve for x
    x = 8,008,178,160.02/138,407.26
  6. Step 6: Final answer
    x = 57,859.52

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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.