Home / 150,381.12-207,528-82,396.72

Finding the Fourth Proportional to 150,381.12, 207,528 and 82,396.72

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Solution

The fourth proportional to 150,381.12, 207,528 and 82,396.72 is: 113,708.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,381.12 : 207,528 = 82,396.72 : x
  2. Step 2: Convert to fraction form
    150,381.12/207,528 = 82,396.72/x
  3. Step 3: Cross multiply
    150,381.12x = 207,528 × 82,396.72
  4. Step 4: Simplify right side
    150,381.12x = 17,099,626,508.16
  5. Step 5: Solve for x
    x = 17,099,626,508.16/150,381.12
  6. Step 6: Final answer
    x = 113,708.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.