Home / 143,916.18-198,659.04-108,209.88

Finding the Fourth Proportional to 143,916.18, 198,659.04 and 108,209.88

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Solution

The fourth proportional to 143,916.18, 198,659.04 and 108,209.88 is: 149,370.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,916.18 : 198,659.04 = 108,209.88 : x
  2. Step 2: Convert to fraction form
    143,916.18/198,659.04 = 108,209.88/x
  3. Step 3: Cross multiply
    143,916.18x = 198,659.04 × 108,209.88
  4. Step 4: Simplify right side
    143,916.18x = 21,496,870,879.32
  5. Step 5: Solve for x
    x = 21,496,870,879.32/143,916.18
  6. Step 6: Final answer
    x = 149,370.77

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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.