Home / 141,403.68-195,132.06-77,740.98

Finding the Fourth Proportional to 141,403.68, 195,132.06 and 77,740.98

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Solution

The fourth proportional to 141,403.68, 195,132.06 and 77,740.98 is: 107,279.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,403.68 : 195,132.06 = 77,740.98 : x
  2. Step 2: Convert to fraction form
    141,403.68/195,132.06 = 77,740.98/x
  3. Step 3: Cross multiply
    141,403.68x = 195,132.06 × 77,740.98
  4. Step 4: Simplify right side
    141,403.68x = 15,169,757,573.82
  5. Step 5: Solve for x
    x = 15,169,757,573.82/141,403.68
  6. Step 6: Final answer
    x = 107,279.79

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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.