Home / 96,732.80-145,423.20-83,902.40

Finding the Fourth Proportional to 96,732.80, 145,423.20 and 83,902.40

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Solution

The fourth proportional to 96,732.80, 145,423.20 and 83,902.40 is: 126,134.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,732.80 : 145,423.20 = 83,902.40 : x
  2. Step 2: Convert to fraction form
    96,732.80/145,423.20 = 83,902.40/x
  3. Step 3: Cross multiply
    96,732.80x = 145,423.20 × 83,902.40
  4. Step 4: Simplify right side
    96,732.80x = 12,201,355,495.68
  5. Step 5: Solve for x
    x = 12,201,355,495.68/96,732.80
  6. Step 6: Final answer
    x = 126,134.63

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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.