Home / 143,690.28-198,285.06-80,026.92

Finding the Fourth Proportional to 143,690.28, 198,285.06 and 80,026.92

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Solution

The fourth proportional to 143,690.28, 198,285.06 and 80,026.92 is: 110,432.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,690.28 : 198,285.06 = 80,026.92 : x
  2. Step 2: Convert to fraction form
    143,690.28/198,285.06 = 80,026.92/x
  3. Step 3: Cross multiply
    143,690.28x = 198,285.06 × 80,026.92
  4. Step 4: Simplify right side
    143,690.28x = 15,868,142,633.82
  5. Step 5: Solve for x
    x = 15,868,142,633.82/143,690.28
  6. Step 6: Final answer
    x = 110,432.96

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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.