Home / 143,818.98-198,471.12-80,160.82

Finding the Fourth Proportional to 143,818.98, 198,471.12 and 80,160.82

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Solution

The fourth proportional to 143,818.98, 198,471.12 and 80,160.82 is: 110,622.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,818.98 : 198,471.12 = 80,160.82 : x
  2. Step 2: Convert to fraction form
    143,818.98/198,471.12 = 80,160.82/x
  3. Step 3: Cross multiply
    143,818.98x = 198,471.12 × 80,160.82
  4. Step 4: Simplify right side
    143,818.98x = 15,909,607,725.52
  5. Step 5: Solve for x
    x = 15,909,607,725.52/143,818.98
  6. Step 6: Final answer
    x = 110,622.45

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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.