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Finding the Fourth Proportional to 113,959.35, 170,939.03 and 107,398.35

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Solution

The fourth proportional to 113,959.35, 170,939.03 and 107,398.35 is: 161,097.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,959.35 : 170,939.03 = 107,398.35 : x
  2. Step 2: Convert to fraction form
    113,959.35/170,939.03 = 107,398.35/x
  3. Step 3: Cross multiply
    113,959.35x = 170,939.03 × 107,398.35
  4. Step 4: Simplify right side
    113,959.35x = 18,358,569,235.61
  5. Step 5: Solve for x
    x = 18,358,569,235.61/113,959.35
  6. Step 6: Final answer
    x = 161,097.53

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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.