Home / 102,812.01-141,879.76-57,490.08

Finding the Fourth Proportional to 102,812.01, 141,879.76 and 57,490.08

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Solution

The fourth proportional to 102,812.01, 141,879.76 and 57,490.08 is: 79,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,812.01 : 141,879.76 = 57,490.08 : x
  2. Step 2: Convert to fraction form
    102,812.01/141,879.76 = 57,490.08/x
  3. Step 3: Cross multiply
    102,812.01x = 141,879.76 × 57,490.08
  4. Step 4: Simplify right side
    102,812.01x = 8,156,678,752.78
  5. Step 5: Solve for x
    x = 8,156,678,752.78/102,812.01
  6. Step 6: Final answer
    x = 79,335.86

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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.