Home / 143,820.92-198,479.66-80,159.18

Finding the Fourth Proportional to 143,820.92, 198,479.66 and 80,159.18

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Solution

The fourth proportional to 143,820.92, 198,479.66 and 80,159.18 is: 110,623.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,820.92 : 198,479.66 = 80,159.18 : x
  2. Step 2: Convert to fraction form
    143,820.92/198,479.66 = 80,159.18/x
  3. Step 3: Cross multiply
    143,820.92x = 198,479.66 × 80,159.18
  4. Step 4: Simplify right side
    143,820.92x = 15,909,965,399.08
  5. Step 5: Solve for x
    x = 15,909,965,399.08/143,820.92
  6. Step 6: Final answer
    x = 110,623.45

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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.