Home / 85,748.49-118,558.62-75,107.61

Finding the Fourth Proportional to 85,748.49, 118,558.62 and 75,107.61

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Solution

The fourth proportional to 85,748.49, 118,558.62 and 75,107.61 is: 103,846.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,748.49 : 118,558.62 = 75,107.61 : x
  2. Step 2: Convert to fraction form
    85,748.49/118,558.62 = 75,107.61/x
  3. Step 3: Cross multiply
    85,748.49x = 118,558.62 × 75,107.61
  4. Step 4: Simplify right side
    85,748.49x = 8,904,654,593.10
  5. Step 5: Solve for x
    x = 8,904,654,593.10/85,748.49
  6. Step 6: Final answer
    x = 103,846.20

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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.