Home / 148,385.28-222,479.10-77,132.82

Finding the Fourth Proportional to 148,385.28, 222,479.10 and 77,132.82

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Solution

The fourth proportional to 148,385.28, 222,479.10 and 77,132.82 is: 115,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,385.28 : 222,479.10 = 77,132.82 : x
  2. Step 2: Convert to fraction form
    148,385.28/222,479.10 = 77,132.82/x
  3. Step 3: Cross multiply
    148,385.28x = 222,479.10 × 77,132.82
  4. Step 4: Simplify right side
    148,385.28x = 17,160,440,374.06
  5. Step 5: Solve for x
    x = 17,160,440,374.06/148,385.28
  6. Step 6: Final answer
    x = 115,647.86

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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.