Home / 126,372.92-174,433.24-77,989.64

Finding the Fourth Proportional to 126,372.92, 174,433.24 and 77,989.64

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Solution

The fourth proportional to 126,372.92, 174,433.24 and 77,989.64 is: 107,649.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,372.92 : 174,433.24 = 77,989.64 : x
  2. Step 2: Convert to fraction form
    126,372.92/174,433.24 = 77,989.64/x
  3. Step 3: Cross multiply
    126,372.92x = 174,433.24 × 77,989.64
  4. Step 4: Simplify right side
    126,372.92x = 13,603,985,591.63
  5. Step 5: Solve for x
    x = 13,603,985,591.63/126,372.92
  6. Step 6: Final answer
    x = 107,649.53

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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.