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Finding the Fourth Proportional to 83,159.40, 124,817.40 and 43,744.80

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Solution

The fourth proportional to 83,159.40, 124,817.40 and 43,744.80 is: 65,658.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,159.40 : 124,817.40 = 43,744.80 : x
  2. Step 2: Convert to fraction form
    83,159.40/124,817.40 = 43,744.80/x
  3. Step 3: Cross multiply
    83,159.40x = 124,817.40 × 43,744.80
  4. Step 4: Simplify right side
    83,159.40x = 5,460,112,199.52
  5. Step 5: Solve for x
    x = 5,460,112,199.52/83,159.40
  6. Step 6: Final answer
    x = 65,658.39

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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.