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Finding the Fourth Proportional to 84,866.86, 127,283.89 and 80,652.03

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Solution

The fourth proportional to 84,866.86, 127,283.89 and 80,652.03 is: 120,962.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,866.86 : 127,283.89 = 80,652.03 : x
  2. Step 2: Convert to fraction form
    84,866.86/127,283.89 = 80,652.03/x
  3. Step 3: Cross multiply
    84,866.86x = 127,283.89 × 80,652.03
  4. Step 4: Simplify right side
    84,866.86x = 10,265,704,114.80
  5. Step 5: Solve for x
    x = 10,265,704,114.80/84,866.86
  6. Step 6: Final answer
    x = 120,962.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.