Home / 121,211.33-181,732.46-53,706.65

Finding the Fourth Proportional to 121,211.33, 181,732.46 and 53,706.65

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Solution

The fourth proportional to 121,211.33, 181,732.46 and 53,706.65 is: 80,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,211.33 : 181,732.46 = 53,706.65 : x
  2. Step 2: Convert to fraction form
    121,211.33/181,732.46 = 53,706.65/x
  3. Step 3: Cross multiply
    121,211.33x = 181,732.46 × 53,706.65
  4. Step 4: Simplify right side
    121,211.33x = 9,760,240,445.66
  5. Step 5: Solve for x
    x = 9,760,240,445.66/121,211.33
  6. Step 6: Final answer
    x = 80,522.51

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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.