Home / 143,718.22-198,337.17-80,056

Finding the Fourth Proportional to 143,718.22, 198,337.17 and 80,056

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Solution

The fourth proportional to 143,718.22, 198,337.17 and 80,056 is: 110,480.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,718.22 : 198,337.17 = 80,056 : x
  2. Step 2: Convert to fraction form
    143,718.22/198,337.17 = 80,056/x
  3. Step 3: Cross multiply
    143,718.22x = 198,337.17 × 80,056
  4. Step 4: Simplify right side
    143,718.22x = 15,878,080,481.52
  5. Step 5: Solve for x
    x = 15,878,080,481.52/143,718.22
  6. Step 6: Final answer
    x = 110,480.64

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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.