Home / 121,767.88-182,356.56-84,222.58

Finding the Fourth Proportional to 121,767.88, 182,356.56 and 84,222.58

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Solution

The fourth proportional to 121,767.88, 182,356.56 and 84,222.58 is: 126,129.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,767.88 : 182,356.56 = 84,222.58 : x
  2. Step 2: Convert to fraction form
    121,767.88/182,356.56 = 84,222.58/x
  3. Step 3: Cross multiply
    121,767.88x = 182,356.56 × 84,222.58
  4. Step 4: Simplify right side
    121,767.88x = 15,358,539,963.12
  5. Step 5: Solve for x
    x = 15,358,539,963.12/121,767.88
  6. Step 6: Final answer
    x = 126,129.65

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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.