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Finding the Fourth Proportional to 143,671.59, 198,267.03 and 83,253.87

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Solution

The fourth proportional to 143,671.59, 198,267.03 and 83,253.87 is: 114,890.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,671.59 : 198,267.03 = 83,253.87 : x
  2. Step 2: Convert to fraction form
    143,671.59/198,267.03 = 83,253.87/x
  3. Step 3: Cross multiply
    143,671.59x = 198,267.03 × 83,253.87
  4. Step 4: Simplify right side
    143,671.59x = 16,506,497,540.91
  5. Step 5: Solve for x
    x = 16,506,497,540.91/143,671.59
  6. Step 6: Final answer
    x = 114,890.48

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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.