Home / 108,512.70-149,749.50-60,766.86

Finding the Fourth Proportional to 108,512.70, 149,749.50 and 60,766.86

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Solution

The fourth proportional to 108,512.70, 149,749.50 and 60,766.86 is: 83,859.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,512.70 : 149,749.50 = 60,766.86 : x
  2. Step 2: Convert to fraction form
    108,512.70/149,749.50 = 60,766.86/x
  3. Step 3: Cross multiply
    108,512.70x = 149,749.50 × 60,766.86
  4. Step 4: Simplify right side
    108,512.70x = 9,099,806,901.57
  5. Step 5: Solve for x
    x = 9,099,806,901.57/108,512.70
  6. Step 6: Final answer
    x = 83,859.37

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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.