Home / 140,737.18-194,213.68-78,648.18

Finding the Fourth Proportional to 140,737.18, 194,213.68 and 78,648.18

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Solution

The fourth proportional to 140,737.18, 194,213.68 and 78,648.18 is: 108,532.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,737.18 : 194,213.68 = 78,648.18 : x
  2. Step 2: Convert to fraction form
    140,737.18/194,213.68 = 78,648.18/x
  3. Step 3: Cross multiply
    140,737.18x = 194,213.68 × 78,648.18
  4. Step 4: Simplify right side
    140,737.18x = 15,274,552,463.10
  5. Step 5: Solve for x
    x = 15,274,552,463.10/140,737.18
  6. Step 6: Final answer
    x = 108,532.46

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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.