Home / 144,624.10-216,936.15-131,721.70

Finding the Fourth Proportional to 144,624.10, 216,936.15 and 131,721.70

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Solution

The fourth proportional to 144,624.10, 216,936.15 and 131,721.70 is: 197,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,624.10 : 216,936.15 = 131,721.70 : x
  2. Step 2: Convert to fraction form
    144,624.10/216,936.15 = 131,721.70/x
  3. Step 3: Cross multiply
    144,624.10x = 216,936.15 × 131,721.70
  4. Step 4: Simplify right side
    144,624.10x = 28,575,198,469.46
  5. Step 5: Solve for x
    x = 28,575,198,469.46/144,624.10
  6. Step 6: Final answer
    x = 197,582.55

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1.5x scale

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.