Home / 140,763.92-194,254.26-77,102.78

Finding the Fourth Proportional to 140,763.92, 194,254.26 and 77,102.78

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Solution

The fourth proportional to 140,763.92, 194,254.26 and 77,102.78 is: 106,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,763.92 : 194,254.26 = 77,102.78 : x
  2. Step 2: Convert to fraction form
    140,763.92/194,254.26 = 77,102.78/x
  3. Step 3: Cross multiply
    140,763.92x = 194,254.26 × 77,102.78
  4. Step 4: Simplify right side
    140,763.92x = 14,977,543,472.84
  5. Step 5: Solve for x
    x = 14,977,543,472.84/140,763.92
  6. Step 6: Final answer
    x = 106,401.86

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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.