Home / 143,387.20-214,821.60-116,948.80

Finding the Fourth Proportional to 143,387.20, 214,821.60 and 116,948.80

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Solution

The fourth proportional to 143,387.20, 214,821.60 and 116,948.80 is: 175,211.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,387.20 : 214,821.60 = 116,948.80 : x
  2. Step 2: Convert to fraction form
    143,387.20/214,821.60 = 116,948.80/x
  3. Step 3: Cross multiply
    143,387.20x = 214,821.60 × 116,948.80
  4. Step 4: Simplify right side
    143,387.20x = 25,123,128,334.08
  5. Step 5: Solve for x
    x = 25,123,128,334.08/143,387.20
  6. Step 6: Final answer
    x = 175,211.79

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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.