Home / 215,885.61-323,850.02-66,124.17

Finding the Fourth Proportional to 215,885.61, 323,850.02 and 66,124.17

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Solution

The fourth proportional to 215,885.61, 323,850.02 and 66,124.17 is: 99,192.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,885.61 : 323,850.02 = 66,124.17 : x
  2. Step 2: Convert to fraction form
    215,885.61/323,850.02 = 66,124.17/x
  3. Step 3: Cross multiply
    215,885.61x = 323,850.02 × 66,124.17
  4. Step 4: Simplify right side
    215,885.61x = 21,414,313,446.36
  5. Step 5: Solve for x
    x = 21,414,313,446.36/215,885.61
  6. Step 6: Final answer
    x = 99,192.87

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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.