Home / 102,642.68-141,634.32-57,323.12

Finding the Fourth Proportional to 102,642.68, 141,634.32 and 57,323.12

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Solution

The fourth proportional to 102,642.68, 141,634.32 and 57,323.12 is: 79,098.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,642.68 : 141,634.32 = 57,323.12 : x
  2. Step 2: Convert to fraction form
    102,642.68/141,634.32 = 57,323.12/x
  3. Step 3: Cross multiply
    102,642.68x = 141,634.32 × 57,323.12
  4. Step 4: Simplify right side
    102,642.68x = 8,118,921,121.48
  5. Step 5: Solve for x
    x = 8,118,921,121.48/102,642.68
  6. Step 6: Final answer
    x = 79,098.88

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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.