Home / 108,518.91-149,757.14-60,121.86

Finding the Fourth Proportional to 108,518.91, 149,757.14 and 60,121.86

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Solution

The fourth proportional to 108,518.91, 149,757.14 and 60,121.86 is: 82,968.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,518.91 : 149,757.14 = 60,121.86 : x
  2. Step 2: Convert to fraction form
    108,518.91/149,757.14 = 60,121.86/x
  3. Step 3: Cross multiply
    108,518.91x = 149,757.14 × 60,121.86
  4. Step 4: Simplify right side
    108,518.91x = 9,003,678,319.19
  5. Step 5: Solve for x
    x = 9,003,678,319.19/108,518.91
  6. Step 6: Final answer
    x = 82,968.75

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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.