Home / 143,995.95-198,713.88-80,335.62

Finding the Fourth Proportional to 143,995.95, 198,713.88 and 80,335.62

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Solution

The fourth proportional to 143,995.95, 198,713.88 and 80,335.62 is: 110,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,995.95 : 198,713.88 = 80,335.62 : x
  2. Step 2: Convert to fraction form
    143,995.95/198,713.88 = 80,335.62/x
  3. Step 3: Cross multiply
    143,995.95x = 198,713.88 × 80,335.62
  4. Step 4: Simplify right side
    143,995.95x = 15,963,802,752.41
  5. Step 5: Solve for x
    x = 15,963,802,752.41/143,995.95
  6. Step 6: Final answer
    x = 110,862.86

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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.