Home / 141,883.06-195,796.29-78,226.78

Finding the Fourth Proportional to 141,883.06, 195,796.29 and 78,226.78

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Solution

The fourth proportional to 141,883.06, 195,796.29 and 78,226.78 is: 107,951.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,883.06 : 195,796.29 = 78,226.78 : x
  2. Step 2: Convert to fraction form
    141,883.06/195,796.29 = 78,226.78/x
  3. Step 3: Cross multiply
    141,883.06x = 195,796.29 × 78,226.78
  4. Step 4: Simplify right side
    141,883.06x = 15,316,513,302.65
  5. Step 5: Solve for x
    x = 15,316,513,302.65/141,883.06
  6. Step 6: Final answer
    x = 107,951.67

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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.