Home / 140,343.62-193,671.92-76,680.05

Finding the Fourth Proportional to 140,343.62, 193,671.92 and 76,680.05

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Solution

The fourth proportional to 140,343.62, 193,671.92 and 76,680.05 is: 105,817.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,343.62 : 193,671.92 = 76,680.05 : x
  2. Step 2: Convert to fraction form
    140,343.62/193,671.92 = 76,680.05/x
  3. Step 3: Cross multiply
    140,343.62x = 193,671.92 × 76,680.05
  4. Step 4: Simplify right side
    140,343.62x = 14,850,772,125.80
  5. Step 5: Solve for x
    x = 14,850,772,125.80/140,343.62
  6. Step 6: Final answer
    x = 105,817.22

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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.