Home / 125,225.52-187,869-36,479.84

Finding the Fourth Proportional to 125,225.52, 187,869 and 36,479.84

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Solution

The fourth proportional to 125,225.52, 187,869 and 36,479.84 is: 54,728.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,225.52 : 187,869 = 36,479.84 : x
  2. Step 2: Convert to fraction form
    125,225.52/187,869 = 36,479.84/x
  3. Step 3: Cross multiply
    125,225.52x = 187,869 × 36,479.84
  4. Step 4: Simplify right side
    125,225.52x = 6,853,431,060.96
  5. Step 5: Solve for x
    x = 6,853,431,060.96/125,225.52
  6. Step 6: Final answer
    x = 54,728.71

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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.