Home / 143,731.68-198,341.10-80,058.12

Finding the Fourth Proportional to 143,731.68, 198,341.10 and 80,058.12

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Solution

The fourth proportional to 143,731.68, 198,341.10 and 80,058.12 is: 110,475.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,731.68 : 198,341.10 = 80,058.12 : x
  2. Step 2: Convert to fraction form
    143,731.68/198,341.10 = 80,058.12/x
  3. Step 3: Cross multiply
    143,731.68x = 198,341.10 × 80,058.12
  4. Step 4: Simplify right side
    143,731.68x = 15,878,815,584.73
  5. Step 5: Solve for x
    x = 15,878,815,584.73/143,731.68
  6. Step 6: Final answer
    x = 110,475.41

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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.