Home / 131,063.70-180,747.89-97,156.65

Finding the Fourth Proportional to 131,063.70, 180,747.89 and 97,156.65

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Solution

The fourth proportional to 131,063.70, 180,747.89 and 97,156.65 is: 133,987.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,063.70 : 180,747.89 = 97,156.65 : x
  2. Step 2: Convert to fraction form
    131,063.70/180,747.89 = 97,156.65/x
  3. Step 3: Cross multiply
    131,063.70x = 180,747.89 × 97,156.65
  4. Step 4: Simplify right side
    131,063.70x = 17,560,859,001.19
  5. Step 5: Solve for x
    x = 17,560,859,001.19/131,063.70
  6. Step 6: Final answer
    x = 133,987.21

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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.