Home / 138,946.29-208,423.68-96,209.88

Finding the Fourth Proportional to 138,946.29, 208,423.68 and 96,209.88

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Solution

The fourth proportional to 138,946.29, 208,423.68 and 96,209.88 is: 144,317.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,946.29 : 208,423.68 = 96,209.88 : x
  2. Step 2: Convert to fraction form
    138,946.29/208,423.68 = 96,209.88/x
  3. Step 3: Cross multiply
    138,946.29x = 208,423.68 × 96,209.88
  4. Step 4: Simplify right side
    138,946.29x = 20,052,416,640.76
  5. Step 5: Solve for x
    x = 20,052,416,640.76/138,946.29
  6. Step 6: Final answer
    x = 144,317.76

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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.