Home / 143,998.93-198,793.23-105,193.18

Finding the Fourth Proportional to 143,998.93, 198,793.23 and 105,193.18

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Solution

The fourth proportional to 143,998.93, 198,793.23 and 105,193.18 is: 145,221.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,998.93 : 198,793.23 = 105,193.18 : x
  2. Step 2: Convert to fraction form
    143,998.93/198,793.23 = 105,193.18/x
  3. Step 3: Cross multiply
    143,998.93x = 198,793.23 × 105,193.18
  4. Step 4: Simplify right side
    143,998.93x = 20,911,690,506.24
  5. Step 5: Solve for x
    x = 20,911,690,506.24/143,998.93
  6. Step 6: Final answer
    x = 145,221.16

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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.