Home / 143,807.16-198,448.38-80,141.88

Finding the Fourth Proportional to 143,807.16, 198,448.38 and 80,141.88

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Solution

The fourth proportional to 143,807.16, 198,448.38 and 80,141.88 is: 110,592.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,807.16 : 198,448.38 = 80,141.88 : x
  2. Step 2: Convert to fraction form
    143,807.16/198,448.38 = 80,141.88/x
  3. Step 3: Cross multiply
    143,807.16x = 198,448.38 × 80,141.88
  4. Step 4: Simplify right side
    143,807.16x = 15,904,026,256.15
  5. Step 5: Solve for x
    x = 15,904,026,256.15/143,807.16
  6. Step 6: Final answer
    x = 110,592.73

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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.