Home / 141,629.92-195,441.78-77,955.46

Finding the Fourth Proportional to 141,629.92, 195,441.78 and 77,955.46

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Solution

The fourth proportional to 141,629.92, 195,441.78 and 77,955.46 is: 107,574.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,629.92 : 195,441.78 = 77,955.46 : x
  2. Step 2: Convert to fraction form
    141,629.92/195,441.78 = 77,955.46/x
  3. Step 3: Cross multiply
    141,629.92x = 195,441.78 × 77,955.46
  4. Step 4: Simplify right side
    141,629.92x = 15,235,753,863.12
  5. Step 5: Solve for x
    x = 15,235,753,863.12/141,629.92
  6. Step 6: Final answer
    x = 107,574.40

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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.