Home / 140,101.62-193,340.16-76,439.94

Finding the Fourth Proportional to 140,101.62, 193,340.16 and 76,439.94

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Solution

The fourth proportional to 140,101.62, 193,340.16 and 76,439.94 is: 105,487.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,101.62 : 193,340.16 = 76,439.94 : x
  2. Step 2: Convert to fraction form
    140,101.62/193,340.16 = 76,439.94/x
  3. Step 3: Cross multiply
    140,101.62x = 193,340.16 × 76,439.94
  4. Step 4: Simplify right side
    140,101.62x = 14,778,910,229.99
  5. Step 5: Solve for x
    x = 14,778,910,229.99/140,101.62
  6. Step 6: Final answer
    x = 105,487.08

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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.