Home / 143,976.66-198,558.27-90,267.18

Finding the Fourth Proportional to 143,976.66, 198,558.27 and 90,267.18

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Solution

The fourth proportional to 143,976.66, 198,558.27 and 90,267.18 is: 124,487.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,976.66 : 198,558.27 = 90,267.18 : x
  2. Step 2: Convert to fraction form
    143,976.66/198,558.27 = 90,267.18/x
  3. Step 3: Cross multiply
    143,976.66x = 198,558.27 × 90,267.18
  4. Step 4: Simplify right side
    143,976.66x = 17,923,295,098.58
  5. Step 5: Solve for x
    x = 17,923,295,098.58/143,976.66
  6. Step 6: Final answer
    x = 124,487.50

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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.