Home / 125,271.18-187,737.28-66,151.10

Finding the Fourth Proportional to 125,271.18, 187,737.28 and 66,151.10

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Solution

The fourth proportional to 125,271.18, 187,737.28 and 66,151.10 is: 99,137.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,271.18 : 187,737.28 = 66,151.10 : x
  2. Step 2: Convert to fraction form
    125,271.18/187,737.28 = 66,151.10/x
  3. Step 3: Cross multiply
    125,271.18x = 187,737.28 × 66,151.10
  4. Step 4: Simplify right side
    125,271.18x = 12,419,027,886.97
  5. Step 5: Solve for x
    x = 12,419,027,886.97/125,271.18
  6. Step 6: Final answer
    x = 99,137.15

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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.