Home / 112,520.76-155,278.26-62,219.76

Finding the Fourth Proportional to 112,520.76, 155,278.26 and 62,219.76

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Solution

The fourth proportional to 112,520.76, 155,278.26 and 62,219.76 is: 85,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,520.76 : 155,278.26 = 62,219.76 : x
  2. Step 2: Convert to fraction form
    112,520.76/155,278.26 = 62,219.76/x
  3. Step 3: Cross multiply
    112,520.76x = 155,278.26 × 62,219.76
  4. Step 4: Simplify right side
    112,520.76x = 9,661,376,070.42
  5. Step 5: Solve for x
    x = 9,661,376,070.42/112,520.76
  6. Step 6: Final answer
    x = 85,863.05

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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.