Home / 159,240.12-219,760.66-91,278.15

Finding the Fourth Proportional to 159,240.12, 219,760.66 and 91,278.15

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Solution

The fourth proportional to 159,240.12, 219,760.66 and 91,278.15 is: 125,969.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,240.12 : 219,760.66 = 91,278.15 : x
  2. Step 2: Convert to fraction form
    159,240.12/219,760.66 = 91,278.15/x
  3. Step 3: Cross multiply
    159,240.12x = 219,760.66 × 91,278.15
  4. Step 4: Simplify right side
    159,240.12x = 20,059,346,487.58
  5. Step 5: Solve for x
    x = 20,059,346,487.58/159,240.12
  6. Step 6: Final answer
    x = 125,969.17

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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.