Home / 129,247.21-193,870.89-40,507.63

Finding the Fourth Proportional to 129,247.21, 193,870.89 and 40,507.63

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Solution

The fourth proportional to 129,247.21, 193,870.89 and 40,507.63 is: 60,761.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,247.21 : 193,870.89 = 40,507.63 : x
  2. Step 2: Convert to fraction form
    129,247.21/193,870.89 = 40,507.63/x
  3. Step 3: Cross multiply
    129,247.21x = 193,870.89 × 40,507.63
  4. Step 4: Simplify right side
    129,247.21x = 7,853,250,279.89
  5. Step 5: Solve for x
    x = 7,853,250,279.89/129,247.21
  6. Step 6: Final answer
    x = 60,761.47

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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.