Home / 143,967.12-198,673.34-79,436.96

Finding the Fourth Proportional to 143,967.12, 198,673.34 and 79,436.96

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Solution

The fourth proportional to 143,967.12, 198,673.34 and 79,436.96 is: 109,622.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,967.12 : 198,673.34 = 79,436.96 : x
  2. Step 2: Convert to fraction form
    143,967.12/198,673.34 = 79,436.96/x
  3. Step 3: Cross multiply
    143,967.12x = 198,673.34 × 79,436.96
  4. Step 4: Simplify right side
    143,967.12x = 15,782,006,162.65
  5. Step 5: Solve for x
    x = 15,782,006,162.65/143,967.12
  6. Step 6: Final answer
    x = 109,622.30

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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.