Home / 147,799.20-221,569.20-88,658.40

Finding the Fourth Proportional to 147,799.20, 221,569.20 and 88,658.40

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Solution

The fourth proportional to 147,799.20, 221,569.20 and 88,658.40 is: 132,909.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,799.20 : 221,569.20 = 88,658.40 : x
  2. Step 2: Convert to fraction form
    147,799.20/221,569.20 = 88,658.40/x
  3. Step 3: Cross multiply
    147,799.20x = 221,569.20 × 88,658.40
  4. Step 4: Simplify right side
    147,799.20x = 19,643,970,761.28
  5. Step 5: Solve for x
    x = 19,643,970,761.28/147,799.20
  6. Step 6: Final answer
    x = 132,909.86

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1.5x scale

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.