Home / 113,255.28-156,373.47-79,339.02

Finding the Fourth Proportional to 113,255.28, 156,373.47 and 79,339.02

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Solution

The fourth proportional to 113,255.28, 156,373.47 and 79,339.02 is: 109,544.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,255.28 : 156,373.47 = 79,339.02 : x
  2. Step 2: Convert to fraction form
    113,255.28/156,373.47 = 79,339.02/x
  3. Step 3: Cross multiply
    113,255.28x = 156,373.47 × 79,339.02
  4. Step 4: Simplify right side
    113,255.28x = 12,406,517,863.80
  5. Step 5: Solve for x
    x = 12,406,517,863.80/113,255.28
  6. Step 6: Final answer
    x = 109,544.72

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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.