Home / 121,542.21-182,332.80-51,422.13

Finding the Fourth Proportional to 121,542.21, 182,332.80 and 51,422.13

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Solution

The fourth proportional to 121,542.21, 182,332.80 and 51,422.13 is: 77,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,542.21 : 182,332.80 = 51,422.13 : x
  2. Step 2: Convert to fraction form
    121,542.21/182,332.80 = 51,422.13/x
  3. Step 3: Cross multiply
    121,542.21x = 182,332.80 × 51,422.13
  4. Step 4: Simplify right side
    121,542.21x = 9,375,940,944.86
  5. Step 5: Solve for x
    x = 9,375,940,944.86/121,542.21
  6. Step 6: Final answer
    x = 77,141.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.