Home / 112,414.96-155,154.42-72,179.56

Finding the Fourth Proportional to 112,414.96, 155,154.42 and 72,179.56

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Solution

The fourth proportional to 112,414.96, 155,154.42 and 72,179.56 is: 99,621.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,414.96 : 155,154.42 = 72,179.56 : x
  2. Step 2: Convert to fraction form
    112,414.96/155,154.42 = 72,179.56/x
  3. Step 3: Cross multiply
    112,414.96x = 155,154.42 × 72,179.56
  4. Step 4: Simplify right side
    112,414.96x = 11,198,977,767.66
  5. Step 5: Solve for x
    x = 11,198,977,767.66/112,414.96
  6. Step 6: Final answer
    x = 99,621.77

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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.