Home / 351,854.28-527,747.60-99,130.70

Finding the Fourth Proportional to 351,854.28, 527,747.60 and 99,130.70

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Solution

The fourth proportional to 351,854.28, 527,747.60 and 99,130.70 is: 148,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,854.28 : 527,747.60 = 99,130.70 : x
  2. Step 2: Convert to fraction form
    351,854.28/527,747.60 = 99,130.70/x
  3. Step 3: Cross multiply
    351,854.28x = 527,747.60 × 99,130.70
  4. Step 4: Simplify right side
    351,854.28x = 52,315,990,578.52
  5. Step 5: Solve for x
    x = 52,315,990,578.52/351,854.28
  6. Step 6: Final answer
    x = 148,686.53

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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.