Home / 125,260-172,949.52-80,625.76

Finding the Fourth Proportional to 125,260, 172,949.52 and 80,625.76

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Solution

The fourth proportional to 125,260, 172,949.52 and 80,625.76 is: 111,321.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,260 : 172,949.52 = 80,625.76 : x
  2. Step 2: Convert to fraction form
    125,260/172,949.52 = 80,625.76/x
  3. Step 3: Cross multiply
    125,260x = 172,949.52 × 80,625.76
  4. Step 4: Simplify right side
    125,260x = 13,944,186,491.64
  5. Step 5: Solve for x
    x = 13,944,186,491.64/125,260
  6. Step 6: Final answer
    x = 111,321.94

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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.