Home / 159,372.24-219,915.40-91,370.50

Finding the Fourth Proportional to 159,372.24, 219,915.40 and 91,370.50

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Solution

The fourth proportional to 159,372.24, 219,915.40 and 91,370.50 is: 126,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,372.24 : 219,915.40 = 91,370.50 : x
  2. Step 2: Convert to fraction form
    159,372.24/219,915.40 = 91,370.50/x
  3. Step 3: Cross multiply
    159,372.24x = 219,915.40 × 91,370.50
  4. Step 4: Simplify right side
    159,372.24x = 20,093,780,055.70
  5. Step 5: Solve for x
    x = 20,093,780,055.70/159,372.24
  6. Step 6: Final answer
    x = 126,080.80

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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.