Home / 372,049.90-558,015.12-102,115

Finding the Fourth Proportional to 372,049.90, 558,015.12 and 102,115

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Solution

The fourth proportional to 372,049.90, 558,015.12 and 102,115 is: 153,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,049.90 : 558,015.12 = 102,115 : x
  2. Step 2: Convert to fraction form
    372,049.90/558,015.12 = 102,115/x
  3. Step 3: Cross multiply
    372,049.90x = 558,015.12 × 102,115
  4. Step 4: Simplify right side
    372,049.90x = 56,981,713,978.80
  5. Step 5: Solve for x
    x = 56,981,713,978.80/372,049.90
  6. Step 6: Final answer
    x = 153,156.11

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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.