Home / 102,396.48-141,190.05-83,223.78

Finding the Fourth Proportional to 102,396.48, 141,190.05 and 83,223.78

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Solution

The fourth proportional to 102,396.48, 141,190.05 and 83,223.78 is: 114,753.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,396.48 : 141,190.05 = 83,223.78 : x
  2. Step 2: Convert to fraction form
    102,396.48/141,190.05 = 83,223.78/x
  3. Step 3: Cross multiply
    102,396.48x = 141,190.05 × 83,223.78
  4. Step 4: Simplify right side
    102,396.48x = 11,750,369,659.39
  5. Step 5: Solve for x
    x = 11,750,369,659.39/102,396.48
  6. Step 6: Final answer
    x = 114,753.65

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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.