Home / 231,223.41-346,862.88-81,432.72

Finding the Fourth Proportional to 231,223.41, 346,862.88 and 81,432.72

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Solution

The fourth proportional to 231,223.41, 346,862.88 and 81,432.72 is: 122,158.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,223.41 : 346,862.88 = 81,432.72 : x
  2. Step 2: Convert to fraction form
    231,223.41/346,862.88 = 81,432.72/x
  3. Step 3: Cross multiply
    231,223.41x = 346,862.88 × 81,432.72
  4. Step 4: Simplify right side
    231,223.41x = 28,245,987,785.43
  5. Step 5: Solve for x
    x = 28,245,987,785.43/231,223.41
  6. Step 6: Final answer
    x = 122,158.86

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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.