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Finding the Fourth Proportional to 125,946.54, 173,510.60 and 87,640.22

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Solution

The fourth proportional to 125,946.54, 173,510.60 and 87,640.22 is: 120,737.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,946.54 : 173,510.60 = 87,640.22 : x
  2. Step 2: Convert to fraction form
    125,946.54/173,510.60 = 87,640.22/x
  3. Step 3: Cross multiply
    125,946.54x = 173,510.60 × 87,640.22
  4. Step 4: Simplify right side
    125,946.54x = 15,206,505,850.58
  5. Step 5: Solve for x
    x = 15,206,505,850.58/125,946.54
  6. Step 6: Final answer
    x = 120,737.78

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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.