Home / 143,747.60-198,356.48-83,337.20

Finding the Fourth Proportional to 143,747.60, 198,356.48 and 83,337.20

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Solution

The fourth proportional to 143,747.60, 198,356.48 and 83,337.20 is: 114,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,747.60 : 198,356.48 = 83,337.20 : x
  2. Step 2: Convert to fraction form
    143,747.60/198,356.48 = 83,337.20/x
  3. Step 3: Cross multiply
    143,747.60x = 198,356.48 × 83,337.20
  4. Step 4: Simplify right side
    143,747.60x = 16,530,473,645.06
  5. Step 5: Solve for x
    x = 16,530,473,645.06/143,747.60
  6. Step 6: Final answer
    x = 114,996.52

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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.