Home / 143,766.56-198,398.66-83,373.06

Finding the Fourth Proportional to 143,766.56, 198,398.66 and 83,373.06

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Solution

The fourth proportional to 143,766.56, 198,398.66 and 83,373.06 is: 115,055.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,766.56 : 198,398.66 = 83,373.06 : x
  2. Step 2: Convert to fraction form
    143,766.56/198,398.66 = 83,373.06/x
  3. Step 3: Cross multiply
    143,766.56x = 198,398.66 × 83,373.06
  4. Step 4: Simplify right side
    143,766.56x = 16,541,103,384.10
  5. Step 5: Solve for x
    x = 16,541,103,384.10/143,766.56
  6. Step 6: Final answer
    x = 115,055.29

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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.