Home / 143,702.28-198,255.54-143,480.76

Finding the Fourth Proportional to 143,702.28, 198,255.54 and 143,480.76

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Solution

The fourth proportional to 143,702.28, 198,255.54 and 143,480.76 is: 197,949.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,702.28 : 198,255.54 = 143,480.76 : x
  2. Step 2: Convert to fraction form
    143,702.28/198,255.54 = 143,480.76/x
  3. Step 3: Cross multiply
    143,702.28x = 198,255.54 × 143,480.76
  4. Step 4: Simplify right side
    143,702.28x = 28,445,855,553.41
  5. Step 5: Solve for x
    x = 28,445,855,553.41/143,702.28
  6. Step 6: Final answer
    x = 197,949.93

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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.