Home / 143,720.80-198,340.83-80,058.62

Finding the Fourth Proportional to 143,720.80, 198,340.83 and 80,058.62

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Solution

The fourth proportional to 143,720.80, 198,340.83 and 80,058.62 is: 110,484.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,720.80 : 198,340.83 = 80,058.62 : x
  2. Step 2: Convert to fraction form
    143,720.80/198,340.83 = 80,058.62/x
  3. Step 3: Cross multiply
    143,720.80x = 198,340.83 × 80,058.62
  4. Step 4: Simplify right side
    143,720.80x = 15,878,893,635.31
  5. Step 5: Solve for x
    x = 15,878,893,635.31/143,720.80
  6. Step 6: Final answer
    x = 110,484.31

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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.