Home / 129,247.10-193,870.70-40,507.50

Finding the Fourth Proportional to 129,247.10, 193,870.70 and 40,507.50

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Solution

The fourth proportional to 129,247.10, 193,870.70 and 40,507.50 is: 60,761.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,247.10 : 193,870.70 = 40,507.50 : x
  2. Step 2: Convert to fraction form
    129,247.10/193,870.70 = 40,507.50/x
  3. Step 3: Cross multiply
    129,247.10x = 193,870.70 × 40,507.50
  4. Step 4: Simplify right side
    129,247.10x = 7,853,217,177.71
  5. Step 5: Solve for x
    x = 7,853,217,177.71/129,247.10
  6. Step 6: Final answer
    x = 60,761.27

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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.