Home / 159,005.18-219,440.61-108,130.76

Finding the Fourth Proportional to 159,005.18, 219,440.61 and 108,130.76

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Solution

The fourth proportional to 159,005.18, 219,440.61 and 108,130.76 is: 149,229.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,005.18 : 219,440.61 = 108,130.76 : x
  2. Step 2: Convert to fraction form
    159,005.18/219,440.61 = 108,130.76/x
  3. Step 3: Cross multiply
    159,005.18x = 219,440.61 × 108,130.76
  4. Step 4: Simplify right side
    159,005.18x = 23,728,279,934.16
  5. Step 5: Solve for x
    x = 23,728,279,934.16/159,005.18
  6. Step 6: Final answer
    x = 149,229.60

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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.