Home / 129,834.81-194,239.89-98,335.89

Finding the Fourth Proportional to 129,834.81, 194,239.89 and 98,335.89

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Solution

The fourth proportional to 129,834.81, 194,239.89 and 98,335.89 is: 147,115.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,834.81 : 194,239.89 = 98,335.89 : x
  2. Step 2: Convert to fraction form
    129,834.81/194,239.89 = 98,335.89/x
  3. Step 3: Cross multiply
    129,834.81x = 194,239.89 × 98,335.89
  4. Step 4: Simplify right side
    129,834.81x = 19,100,752,456.65
  5. Step 5: Solve for x
    x = 19,100,752,456.65/129,834.81
  6. Step 6: Final answer
    x = 147,115.80

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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.