Home / 94,098-141,147.21-66,143.15

Finding the Fourth Proportional to 94,098, 141,147.21 and 66,143.15

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Solution

The fourth proportional to 94,098, 141,147.21 and 66,143.15 is: 99,214.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,098 : 141,147.21 = 66,143.15 : x
  2. Step 2: Convert to fraction form
    94,098/141,147.21 = 66,143.15/x
  3. Step 3: Cross multiply
    94,098x = 141,147.21 × 66,143.15
  4. Step 4: Simplify right side
    94,098x = 9,335,921,435.98
  5. Step 5: Solve for x
    x = 9,335,921,435.98/94,098
  6. Step 6: Final answer
    x = 99,214.88

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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.