Home / 159,717.29-220,294.12-108,639.34

Finding the Fourth Proportional to 159,717.29, 220,294.12 and 108,639.34

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Solution

The fourth proportional to 159,717.29, 220,294.12 and 108,639.34 is: 149,843.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,717.29 : 220,294.12 = 108,639.34 : x
  2. Step 2: Convert to fraction form
    159,717.29/220,294.12 = 108,639.34/x
  3. Step 3: Cross multiply
    159,717.29x = 220,294.12 × 108,639.34
  4. Step 4: Simplify right side
    159,717.29x = 23,932,607,341.06
  5. Step 5: Solve for x
    x = 23,932,607,341.06/159,717.29
  6. Step 6: Final answer
    x = 149,843.56

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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.