Home / 159,004.18-219,439.23-108,129.76

Finding the Fourth Proportional to 159,004.18, 219,439.23 and 108,129.76

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Solution

The fourth proportional to 159,004.18, 219,439.23 and 108,129.76 is: 149,228.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,004.18 : 219,439.23 = 108,129.76 : x
  2. Step 2: Convert to fraction form
    159,004.18/219,439.23 = 108,129.76/x
  3. Step 3: Cross multiply
    159,004.18x = 219,439.23 × 108,129.76
  4. Step 4: Simplify right side
    159,004.18x = 23,727,911,274.48
  5. Step 5: Solve for x
    x = 23,727,911,274.48/159,004.18
  6. Step 6: Final answer
    x = 149,228.22

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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.