Home / 141,451.96-195,199.81-77,789.75

Finding the Fourth Proportional to 141,451.96, 195,199.81 and 77,789.75

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Solution

The fourth proportional to 141,451.96, 195,199.81 and 77,789.75 is: 107,347.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,451.96 : 195,199.81 = 77,789.75 : x
  2. Step 2: Convert to fraction form
    141,451.96/195,199.81 = 77,789.75/x
  3. Step 3: Cross multiply
    141,451.96x = 195,199.81 × 77,789.75
  4. Step 4: Simplify right side
    141,451.96x = 15,184,544,713.47
  5. Step 5: Solve for x
    x = 15,184,544,713.47/141,451.96
  6. Step 6: Final answer
    x = 107,347.72

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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.