Home / 125,529.30-188,234.55-72,954.90

Finding the Fourth Proportional to 125,529.30, 188,234.55 and 72,954.90

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Solution

The fourth proportional to 125,529.30, 188,234.55 and 72,954.90 is: 109,397.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,529.30 : 188,234.55 = 72,954.90 : x
  2. Step 2: Convert to fraction form
    125,529.30/188,234.55 = 72,954.90/x
  3. Step 3: Cross multiply
    125,529.30x = 188,234.55 × 72,954.90
  4. Step 4: Simplify right side
    125,529.30x = 13,732,632,771.80
  5. Step 5: Solve for x
    x = 13,732,632,771.80/125,529.30
  6. Step 6: Final answer
    x = 109,397.83

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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.