Home / 129,776.24-194,411.88-85,267.76

Finding the Fourth Proportional to 129,776.24, 194,411.88 and 85,267.76

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Solution

The fourth proportional to 129,776.24, 194,411.88 and 85,267.76 is: 127,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,776.24 : 194,411.88 = 85,267.76 : x
  2. Step 2: Convert to fraction form
    129,776.24/194,411.88 = 85,267.76/x
  3. Step 3: Cross multiply
    129,776.24x = 194,411.88 × 85,267.76
  4. Step 4: Simplify right side
    129,776.24x = 16,577,065,524.99
  5. Step 5: Solve for x
    x = 16,577,065,524.99/129,776.24
  6. Step 6: Final answer
    x = 127,735.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.