Home / 144,949.30-217,423.95-91,805.20

Finding the Fourth Proportional to 144,949.30, 217,423.95 and 91,805.20

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Solution

The fourth proportional to 144,949.30, 217,423.95 and 91,805.20 is: 137,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,949.30 : 217,423.95 = 91,805.20 : x
  2. Step 2: Convert to fraction form
    144,949.30/217,423.95 = 91,805.20/x
  3. Step 3: Cross multiply
    144,949.30x = 217,423.95 × 91,805.20
  4. Step 4: Simplify right side
    144,949.30x = 19,960,649,214.54
  5. Step 5: Solve for x
    x = 19,960,649,214.54/144,949.30
  6. Step 6: Final answer
    x = 137,707.80

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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.