Home / 140,042.19-193,257.34-79,612.83

Finding the Fourth Proportional to 140,042.19, 193,257.34 and 79,612.83

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Solution

The fourth proportional to 140,042.19, 193,257.34 and 79,612.83 is: 109,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,042.19 : 193,257.34 = 79,612.83 : x
  2. Step 2: Convert to fraction form
    140,042.19/193,257.34 = 79,612.83/x
  3. Step 3: Cross multiply
    140,042.19x = 193,257.34 × 79,612.83
  4. Step 4: Simplify right side
    140,042.19x = 15,385,763,755.67
  5. Step 5: Solve for x
    x = 15,385,763,755.67/140,042.19
  6. Step 6: Final answer
    x = 109,865.20

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1.5x scale

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.