Home / 102,451.99-141,384.20-57,129.83

Finding the Fourth Proportional to 102,451.99, 141,384.20 and 57,129.83

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Solution

The fourth proportional to 102,451.99, 141,384.20 and 57,129.83 is: 78,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,451.99 : 141,384.20 = 57,129.83 : x
  2. Step 2: Convert to fraction form
    102,451.99/141,384.20 = 57,129.83/x
  3. Step 3: Cross multiply
    102,451.99x = 141,384.20 × 57,129.83
  4. Step 4: Simplify right side
    102,451.99x = 8,077,255,326.29
  5. Step 5: Solve for x
    x = 8,077,255,326.29/102,451.99
  6. Step 6: Final answer
    x = 78,839.42

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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.