Home / 102,372.30-141,270.12-57,047.94

Finding the Fourth Proportional to 102,372.30, 141,270.12 and 57,047.94

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Solution

The fourth proportional to 102,372.30, 141,270.12 and 57,047.94 is: 78,724.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,372.30 : 141,270.12 = 57,047.94 : x
  2. Step 2: Convert to fraction form
    102,372.30/141,270.12 = 57,047.94/x
  3. Step 3: Cross multiply
    102,372.30x = 141,270.12 × 57,047.94
  4. Step 4: Simplify right side
    102,372.30x = 8,059,169,329.55
  5. Step 5: Solve for x
    x = 8,059,169,329.55/102,372.30
  6. Step 6: Final answer
    x = 78,724.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.