Home / 108,152.78-149,249.25-60,406.79

Finding the Fourth Proportional to 108,152.78, 149,249.25 and 60,406.79

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Solution

The fourth proportional to 108,152.78, 149,249.25 and 60,406.79 is: 83,360.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,152.78 : 149,249.25 = 60,406.79 : x
  2. Step 2: Convert to fraction form
    108,152.78/149,249.25 = 60,406.79/x
  3. Step 3: Cross multiply
    108,152.78x = 149,249.25 × 60,406.79
  4. Step 4: Simplify right side
    108,152.78x = 9,015,668,102.41
  5. Step 5: Solve for x
    x = 9,015,668,102.41/108,152.78
  6. Step 6: Final answer
    x = 83,360.48

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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.