Home / 141,581.45-195,382.29-77,919.30

Finding the Fourth Proportional to 141,581.45, 195,382.29 and 77,919.30

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Solution

The fourth proportional to 141,581.45, 195,382.29 and 77,919.30 is: 107,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,581.45 : 195,382.29 = 77,919.30 : x
  2. Step 2: Convert to fraction form
    141,581.45/195,382.29 = 77,919.30/x
  3. Step 3: Cross multiply
    141,581.45x = 195,382.29 × 77,919.30
  4. Step 4: Simplify right side
    141,581.45x = 15,224,051,561.39
  5. Step 5: Solve for x
    x = 15,224,051,561.39/141,581.45
  6. Step 6: Final answer
    x = 107,528.57

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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.