Home / 141,458-195,212.04-77,799.92

Finding the Fourth Proportional to 141,458, 195,212.04 and 77,799.92

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Solution

The fourth proportional to 141,458, 195,212.04 and 77,799.92 is: 107,363.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,458 : 195,212.04 = 77,799.92 : x
  2. Step 2: Convert to fraction form
    141,458/195,212.04 = 77,799.92/x
  3. Step 3: Cross multiply
    141,458x = 195,212.04 × 77,799.92
  4. Step 4: Simplify right side
    141,458x = 15,187,481,095.04
  5. Step 5: Solve for x
    x = 15,187,481,095.04/141,458
  6. Step 6: Final answer
    x = 107,363.89

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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.