Home / 157,419.18-236,198.43-82,521.50

Finding the Fourth Proportional to 157,419.18, 236,198.43 and 82,521.50

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Solution

The fourth proportional to 157,419.18, 236,198.43 and 82,521.50 is: 123,818.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,419.18 : 236,198.43 = 82,521.50 : x
  2. Step 2: Convert to fraction form
    157,419.18/236,198.43 = 82,521.50/x
  3. Step 3: Cross multiply
    157,419.18x = 236,198.43 × 82,521.50
  4. Step 4: Simplify right side
    157,419.18x = 19,491,447,560.25
  5. Step 5: Solve for x
    x = 19,491,447,560.25/157,419.18
  6. Step 6: Final answer
    x = 123,818.76

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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.