Home / 103,814.80-155,153.27-75,793.86

Finding the Fourth Proportional to 103,814.80, 155,153.27 and 75,793.86

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Solution

The fourth proportional to 103,814.80, 155,153.27 and 75,793.86 is: 113,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,814.80 : 155,153.27 = 75,793.86 : x
  2. Step 2: Convert to fraction form
    103,814.80/155,153.27 = 75,793.86/x
  3. Step 3: Cross multiply
    103,814.80x = 155,153.27 × 75,793.86
  4. Step 4: Simplify right side
    103,814.80x = 11,759,665,414.41
  5. Step 5: Solve for x
    x = 11,759,665,414.41/103,814.80
  6. Step 6: Final answer
    x = 113,275.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.