Home / 131,278.65-196,869.38-103,253.19

Finding the Fourth Proportional to 131,278.65, 196,869.38 and 103,253.19

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Solution

The fourth proportional to 131,278.65, 196,869.38 and 103,253.19 is: 154,841.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,278.65 : 196,869.38 = 103,253.19 : x
  2. Step 2: Convert to fraction form
    131,278.65/196,869.38 = 103,253.19/x
  3. Step 3: Cross multiply
    131,278.65x = 196,869.38 × 103,253.19
  4. Step 4: Simplify right side
    131,278.65x = 20,327,390,982.06
  5. Step 5: Solve for x
    x = 20,327,390,982.06/131,278.65
  6. Step 6: Final answer
    x = 154,841.56

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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.