Home / 102,849.20-141,929.16-58,137.20

Finding the Fourth Proportional to 102,849.20, 141,929.16 and 58,137.20

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Solution

The fourth proportional to 102,849.20, 141,929.16 and 58,137.20 is: 80,227.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,849.20 : 141,929.16 = 58,137.20 : x
  2. Step 2: Convert to fraction form
    102,849.20/141,929.16 = 58,137.20/x
  3. Step 3: Cross multiply
    102,849.20x = 141,929.16 × 58,137.20
  4. Step 4: Simplify right side
    102,849.20x = 8,251,363,960.75
  5. Step 5: Solve for x
    x = 8,251,363,960.75/102,849.20
  6. Step 6: Final answer
    x = 80,227.79

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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.