Home / 103,546.98-155,222.03-66,001.65

Finding the Fourth Proportional to 103,546.98, 155,222.03 and 66,001.65

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Solution

The fourth proportional to 103,546.98, 155,222.03 and 66,001.65 is: 98,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,546.98 : 155,222.03 = 66,001.65 : x
  2. Step 2: Convert to fraction form
    103,546.98/155,222.03 = 66,001.65/x
  3. Step 3: Cross multiply
    103,546.98x = 155,222.03 × 66,001.65
  4. Step 4: Simplify right side
    103,546.98x = 10,244,909,766.34
  5. Step 5: Solve for x
    x = 10,244,909,766.34/103,546.98
  6. Step 6: Final answer
    x = 98,939.73

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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.