Home / 140,042.04-193,257.16-79,612.71

Finding the Fourth Proportional to 140,042.04, 193,257.16 and 79,612.71

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Solution

The fourth proportional to 140,042.04, 193,257.16 and 79,612.71 is: 109,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,042.04 : 193,257.16 = 79,612.71 : x
  2. Step 2: Convert to fraction form
    140,042.04/193,257.16 = 79,612.71/x
  3. Step 3: Cross multiply
    140,042.04x = 193,257.16 × 79,612.71
  4. Step 4: Simplify right side
    140,042.04x = 15,385,726,234.50
  5. Step 5: Solve for x
    x = 15,385,726,234.50/140,042.04
  6. Step 6: Final answer
    x = 109,865.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.