Home / 100,807.92-151,211.67-29,780.43

Finding the Fourth Proportional to 100,807.92, 151,211.67 and 29,780.43

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Solution

The fourth proportional to 100,807.92, 151,211.67 and 29,780.43 is: 44,670.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,807.92 : 151,211.67 = 29,780.43 : x
  2. Step 2: Convert to fraction form
    100,807.92/151,211.67 = 29,780.43/x
  3. Step 3: Cross multiply
    100,807.92x = 151,211.67 × 29,780.43
  4. Step 4: Simplify right side
    100,807.92x = 4,503,148,059.62
  5. Step 5: Solve for x
    x = 4,503,148,059.62/100,807.92
  6. Step 6: Final answer
    x = 44,670.58

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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.