Home / 112,951.05-155,877.36-67,620.30

Finding the Fourth Proportional to 112,951.05, 155,877.36 and 67,620.30

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Solution

The fourth proportional to 112,951.05, 155,877.36 and 67,620.30 is: 93,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,951.05 : 155,877.36 = 67,620.30 : x
  2. Step 2: Convert to fraction form
    112,951.05/155,877.36 = 67,620.30/x
  3. Step 3: Cross multiply
    112,951.05x = 155,877.36 × 67,620.30
  4. Step 4: Simplify right side
    112,951.05x = 10,540,473,846.41
  5. Step 5: Solve for x
    x = 10,540,473,846.41/112,951.05
  6. Step 6: Final answer
    x = 93,318.95

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1.5x scale

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.