Home / 135,820.83-203,931.18-75,966.57

Finding the Fourth Proportional to 135,820.83, 203,931.18 and 75,966.57

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Solution

The fourth proportional to 135,820.83, 203,931.18 and 75,966.57 is: 114,061.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,820.83 : 203,931.18 = 75,966.57 : x
  2. Step 2: Convert to fraction form
    135,820.83/203,931.18 = 75,966.57/x
  3. Step 3: Cross multiply
    135,820.83x = 203,931.18 × 75,966.57
  4. Step 4: Simplify right side
    135,820.83x = 15,491,952,260.65
  5. Step 5: Solve for x
    x = 15,491,952,260.65/135,820.83
  6. Step 6: Final answer
    x = 114,061.68

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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.