Home / 153,893.28-231,245.84-82,868.43

Finding the Fourth Proportional to 153,893.28, 231,245.84 and 82,868.43

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Solution

The fourth proportional to 153,893.28, 231,245.84 and 82,868.43 is: 124,521.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,893.28 : 231,245.84 = 82,868.43 : x
  2. Step 2: Convert to fraction form
    153,893.28/231,245.84 = 82,868.43/x
  3. Step 3: Cross multiply
    153,893.28x = 231,245.84 × 82,868.43
  4. Step 4: Simplify right side
    153,893.28x = 19,162,979,704.83
  5. Step 5: Solve for x
    x = 19,162,979,704.83/153,893.28
  6. Step 6: Final answer
    x = 124,521.22

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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.