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Finding the Fourth Proportional to 121,545.80, 182,318.70 and 116,880.20

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Solution

The fourth proportional to 121,545.80, 182,318.70 and 116,880.20 is: 175,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,545.80 : 182,318.70 = 116,880.20 : x
  2. Step 2: Convert to fraction form
    121,545.80/182,318.70 = 116,880.20/x
  3. Step 3: Cross multiply
    121,545.80x = 182,318.70 × 116,880.20
  4. Step 4: Simplify right side
    121,545.80x = 21,309,446,119.74
  5. Step 5: Solve for x
    x = 21,309,446,119.74/121,545.80
  6. Step 6: Final answer
    x = 175,320.30

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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.