Home / 141,755.81-195,623.01-78,093.59

Finding the Fourth Proportional to 141,755.81, 195,623.01 and 78,093.59

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Solution

The fourth proportional to 141,755.81, 195,623.01 and 78,093.59 is: 107,769.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,755.81 : 195,623.01 = 78,093.59 : x
  2. Step 2: Convert to fraction form
    141,755.81/195,623.01 = 78,093.59/x
  3. Step 3: Cross multiply
    141,755.81x = 195,623.01 × 78,093.59
  4. Step 4: Simplify right side
    141,755.81x = 15,276,902,159.39
  5. Step 5: Solve for x
    x = 15,276,902,159.39/141,755.81
  6. Step 6: Final answer
    x = 107,769.15

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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.