Home / 260,060.33-390,203.19-91,700.92

Finding the Fourth Proportional to 260,060.33, 390,203.19 and 91,700.92

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Solution

The fourth proportional to 260,060.33, 390,203.19 and 91,700.92 is: 137,591.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,060.33 : 390,203.19 = 91,700.92 : x
  2. Step 2: Convert to fraction form
    260,060.33/390,203.19 = 91,700.92/x
  3. Step 3: Cross multiply
    260,060.33x = 390,203.19 × 91,700.92
  4. Step 4: Simplify right side
    260,060.33x = 35,781,991,997.69
  5. Step 5: Solve for x
    x = 35,781,991,997.69/260,060.33
  6. Step 6: Final answer
    x = 137,591.12

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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.