Home / 145,286.40-217,411.20-132,844.80

Finding the Fourth Proportional to 145,286.40, 217,411.20 and 132,844.80

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Solution

The fourth proportional to 145,286.40, 217,411.20 and 132,844.80 is: 198,793.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,286.40 : 217,411.20 = 132,844.80 : x
  2. Step 2: Convert to fraction form
    145,286.40/217,411.20 = 132,844.80/x
  3. Step 3: Cross multiply
    145,286.40x = 217,411.20 × 132,844.80
  4. Step 4: Simplify right side
    145,286.40x = 28,881,947,381.76
  5. Step 5: Solve for x
    x = 28,881,947,381.76/145,286.40
  6. Step 6: Final answer
    x = 198,793.19

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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.