Home / 121,921.52-182,905.02-55,366.28

Finding the Fourth Proportional to 121,921.52, 182,905.02 and 55,366.28

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Solution

The fourth proportional to 121,921.52, 182,905.02 and 55,366.28 is: 83,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,921.52 : 182,905.02 = 55,366.28 : x
  2. Step 2: Convert to fraction form
    121,921.52/182,905.02 = 55,366.28/x
  3. Step 3: Cross multiply
    121,921.52x = 182,905.02 × 55,366.28
  4. Step 4: Simplify right side
    121,921.52x = 10,126,770,550.73
  5. Step 5: Solve for x
    x = 10,126,770,550.73/121,921.52
  6. Step 6: Final answer
    x = 83,059.75

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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.