Home / 108,243.24-149,380.34-61,677.55

Finding the Fourth Proportional to 108,243.24, 149,380.34 and 61,677.55

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Solution

The fourth proportional to 108,243.24, 149,380.34 and 61,677.55 is: 85,117.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,243.24 : 149,380.34 = 61,677.55 : x
  2. Step 2: Convert to fraction form
    108,243.24/149,380.34 = 61,677.55/x
  3. Step 3: Cross multiply
    108,243.24x = 149,380.34 × 61,677.55
  4. Step 4: Simplify right side
    108,243.24x = 9,213,413,267.70
  5. Step 5: Solve for x
    x = 9,213,413,267.70/108,243.24
  6. Step 6: Final answer
    x = 85,117.68

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1.5x scale

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.