Home / 108,344.49-149,203.53-89,306.66

Finding the Fourth Proportional to 108,344.49, 149,203.53 and 89,306.66

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Solution

The fourth proportional to 108,344.49, 149,203.53 and 89,306.66 is: 122,986.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,344.49 : 149,203.53 = 89,306.66 : x
  2. Step 2: Convert to fraction form
    108,344.49/149,203.53 = 89,306.66/x
  3. Step 3: Cross multiply
    108,344.49x = 149,203.53 × 89,306.66
  4. Step 4: Simplify right side
    108,344.49x = 13,324,868,178.49
  5. Step 5: Solve for x
    x = 13,324,868,178.49/108,344.49
  6. Step 6: Final answer
    x = 122,986.12

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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.