Home / 102,699.04-141,723.48-57,377.92

Finding the Fourth Proportional to 102,699.04, 141,723.48 and 57,377.92

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Solution

The fourth proportional to 102,699.04, 141,723.48 and 57,377.92 is: 79,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,699.04 : 141,723.48 = 57,377.92 : x
  2. Step 2: Convert to fraction form
    102,699.04/141,723.48 = 57,377.92/x
  3. Step 3: Cross multiply
    102,699.04x = 141,723.48 × 57,377.92
  4. Step 4: Simplify right side
    102,699.04x = 8,131,798,497.56
  5. Step 5: Solve for x
    x = 8,131,798,497.56/102,699.04
  6. Step 6: Final answer
    x = 79,180.86

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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.