Home / 122,678.66-169,266.31-74,914.58

Finding the Fourth Proportional to 122,678.66, 169,266.31 and 74,914.58

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Solution

The fourth proportional to 122,678.66, 169,266.31 and 74,914.58 is: 103,363.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,678.66 : 169,266.31 = 74,914.58 : x
  2. Step 2: Convert to fraction form
    122,678.66/169,266.31 = 74,914.58/x
  3. Step 3: Cross multiply
    122,678.66x = 169,266.31 × 74,914.58
  4. Step 4: Simplify right side
    122,678.66x = 12,680,514,757.68
  5. Step 5: Solve for x
    x = 12,680,514,757.68/122,678.66
  6. Step 6: Final answer
    x = 103,363.65

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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.