Home / 108,418.50-149,453.51-93,229.79

Finding the Fourth Proportional to 108,418.50, 149,453.51 and 93,229.79

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Solution

The fourth proportional to 108,418.50, 149,453.51 and 93,229.79 is: 128,516.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,418.50 : 149,453.51 = 93,229.79 : x
  2. Step 2: Convert to fraction form
    108,418.50/149,453.51 = 93,229.79/x
  3. Step 3: Cross multiply
    108,418.50x = 149,453.51 × 93,229.79
  4. Step 4: Simplify right side
    108,418.50x = 13,933,518,138.65
  5. Step 5: Solve for x
    x = 13,933,518,138.65/108,418.50
  6. Step 6: Final answer
    x = 128,516.06

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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.