Home / 108,828.78-163,144.74-38,691.69

Finding the Fourth Proportional to 108,828.78, 163,144.74 and 38,691.69

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Solution

The fourth proportional to 108,828.78, 163,144.74 and 38,691.69 is: 58,002.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,828.78 : 163,144.74 = 38,691.69 : x
  2. Step 2: Convert to fraction form
    108,828.78/163,144.74 = 38,691.69/x
  3. Step 3: Cross multiply
    108,828.78x = 163,144.74 × 38,691.69
  4. Step 4: Simplify right side
    108,828.78x = 6,312,345,705.21
  5. Step 5: Solve for x
    x = 6,312,345,705.21/108,828.78
  6. Step 6: Final answer
    x = 58,002.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.