Home / 129,521.43-194,265.14-40,775.40

Finding the Fourth Proportional to 129,521.43, 194,265.14 and 40,775.40

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Solution

The fourth proportional to 129,521.43, 194,265.14 and 40,775.40 is: 61,157.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,521.43 : 194,265.14 = 40,775.40 : x
  2. Step 2: Convert to fraction form
    129,521.43/194,265.14 = 40,775.40/x
  3. Step 3: Cross multiply
    129,521.43x = 194,265.14 × 40,775.40
  4. Step 4: Simplify right side
    129,521.43x = 7,921,238,585.68
  5. Step 5: Solve for x
    x = 7,921,238,585.68/129,521.43
  6. Step 6: Final answer
    x = 61,157.74

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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.