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Finding the Fourth Proportional to 121,296.70, 181,945.05 and 88,248.70

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Solution

The fourth proportional to 121,296.70, 181,945.05 and 88,248.70 is: 132,373.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,296.70 : 181,945.05 = 88,248.70 : x
  2. Step 2: Convert to fraction form
    121,296.70/181,945.05 = 88,248.70/x
  3. Step 3: Cross multiply
    121,296.70x = 181,945.05 × 88,248.70
  4. Step 4: Simplify right side
    121,296.70x = 16,056,414,133.94
  5. Step 5: Solve for x
    x = 16,056,414,133.94/121,296.70
  6. Step 6: Final answer
    x = 132,373.05

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1.5x scale

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.