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Finding the Fourth Proportional to 121,298.70, 181,948.05 and 88,250.70

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Solution

The fourth proportional to 121,298.70, 181,948.05 and 88,250.70 is: 132,376.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,298.70 : 181,948.05 = 88,250.70 : x
  2. Step 2: Convert to fraction form
    121,298.70/181,948.05 = 88,250.70/x
  3. Step 3: Cross multiply
    121,298.70x = 181,948.05 × 88,250.70
  4. Step 4: Simplify right side
    121,298.70x = 16,057,042,776.14
  5. Step 5: Solve for x
    x = 16,057,042,776.14/121,298.70
  6. Step 6: Final answer
    x = 132,376.05

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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.