Home / 141,892.39-195,812.82-78,232.45

Finding the Fourth Proportional to 141,892.39, 195,812.82 and 78,232.45

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Solution

The fourth proportional to 141,892.39, 195,812.82 and 78,232.45 is: 107,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,892.39 : 195,812.82 = 78,232.45 : x
  2. Step 2: Convert to fraction form
    141,892.39/195,812.82 = 78,232.45/x
  3. Step 3: Cross multiply
    141,892.39x = 195,812.82 × 78,232.45
  4. Step 4: Simplify right side
    141,892.39x = 15,318,916,650.01
  5. Step 5: Solve for x
    x = 15,318,916,650.01/141,892.39
  6. Step 6: Final answer
    x = 107,961.51

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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.