Home / 129,233.88-193,870.26-40,475.70

Finding the Fourth Proportional to 129,233.88, 193,870.26 and 40,475.70

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Solution

The fourth proportional to 129,233.88, 193,870.26 and 40,475.70 is: 60,719.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,233.88 : 193,870.26 = 40,475.70 : x
  2. Step 2: Convert to fraction form
    129,233.88/193,870.26 = 40,475.70/x
  3. Step 3: Cross multiply
    129,233.88x = 193,870.26 × 40,475.70
  4. Step 4: Simplify right side
    129,233.88x = 7,847,034,482.68
  5. Step 5: Solve for x
    x = 7,847,034,482.68/129,233.88
  6. Step 6: Final answer
    x = 60,719.64

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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.