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Finding the Fourth Proportional to 125,874.45, 188,914.95 and 124,890.30

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Solution

The fourth proportional to 125,874.45, 188,914.95 and 124,890.30 is: 187,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,874.45 : 188,914.95 = 124,890.30 : x
  2. Step 2: Convert to fraction form
    125,874.45/188,914.95 = 124,890.30/x
  3. Step 3: Cross multiply
    125,874.45x = 188,914.95 × 124,890.30
  4. Step 4: Simplify right side
    125,874.45x = 23,593,644,779.99
  5. Step 5: Solve for x
    x = 23,593,644,779.99/125,874.45
  6. Step 6: Final answer
    x = 187,437.92

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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.