Home / 131,765.12-197,726.41-121,045.47

Finding the Fourth Proportional to 131,765.12, 197,726.41 and 121,045.47

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Solution

The fourth proportional to 131,765.12, 197,726.41 and 121,045.47 is: 181,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,765.12 : 197,726.41 = 121,045.47 : x
  2. Step 2: Convert to fraction form
    131,765.12/197,726.41 = 121,045.47/x
  3. Step 3: Cross multiply
    131,765.12x = 197,726.41 × 121,045.47
  4. Step 4: Simplify right side
    131,765.12x = 23,933,887,414.74
  5. Step 5: Solve for x
    x = 23,933,887,414.74/131,765.12
  6. Step 6: Final answer
    x = 181,640.54

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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.