Home / 99,309.26-137,046.20-56,296.86

Finding the Fourth Proportional to 99,309.26, 137,046.20 and 56,296.86

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Solution

The fourth proportional to 99,309.26, 137,046.20 and 56,296.86 is: 77,689.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,309.26 : 137,046.20 = 56,296.86 : x
  2. Step 2: Convert to fraction form
    99,309.26/137,046.20 = 56,296.86/x
  3. Step 3: Cross multiply
    99,309.26x = 137,046.20 × 56,296.86
  4. Step 4: Simplify right side
    99,309.26x = 7,715,269,939.52
  5. Step 5: Solve for x
    x = 7,715,269,939.52/99,309.26
  6. Step 6: Final answer
    x = 77,689.33

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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.