Home / 261,785.25-392,452.98-90,984.77

Finding the Fourth Proportional to 261,785.25, 392,452.98 and 90,984.77

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Solution

The fourth proportional to 261,785.25, 392,452.98 and 90,984.77 is: 136,398.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,785.25 : 392,452.98 = 90,984.77 : x
  2. Step 2: Convert to fraction form
    261,785.25/392,452.98 = 90,984.77/x
  3. Step 3: Cross multiply
    261,785.25x = 392,452.98 × 90,984.77
  4. Step 4: Simplify right side
    261,785.25x = 35,707,244,121.11
  5. Step 5: Solve for x
    x = 35,707,244,121.11/261,785.25
  6. Step 6: Final answer
    x = 136,398.99

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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.