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Finding the Fourth Proportional to 141,504.67, 195,279.47 and 77,842.47

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Solution

The fourth proportional to 141,504.67, 195,279.47 and 77,842.47 is: 107,424.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,504.67 : 195,279.47 = 77,842.47 : x
  2. Step 2: Convert to fraction form
    141,504.67/195,279.47 = 77,842.47/x
  3. Step 3: Cross multiply
    141,504.67x = 195,279.47 × 77,842.47
  4. Step 4: Simplify right side
    141,504.67x = 15,201,036,285.09
  5. Step 5: Solve for x
    x = 15,201,036,285.09/141,504.67
  6. Step 6: Final answer
    x = 107,424.27

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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.