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Finding the Fourth Proportional to 125,806.20, 173,612.84 and 69,221.20

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Solution

The fourth proportional to 125,806.20, 173,612.84 and 69,221.20 is: 95,525.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,806.20 : 173,612.84 = 69,221.20 : x
  2. Step 2: Convert to fraction form
    125,806.20/173,612.84 = 69,221.20/x
  3. Step 3: Cross multiply
    125,806.20x = 173,612.84 × 69,221.20
  4. Step 4: Simplify right side
    125,806.20x = 12,017,689,120.21
  5. Step 5: Solve for x
    x = 12,017,689,120.21/125,806.20
  6. Step 6: Final answer
    x = 95,525.41

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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.