Home / 141,435.68-195,176.18-77,772.92

Finding the Fourth Proportional to 141,435.68, 195,176.18 and 77,772.92

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Solution

The fourth proportional to 141,435.68, 195,176.18 and 77,772.92 is: 107,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,435.68 : 195,176.18 = 77,772.92 : x
  2. Step 2: Convert to fraction form
    141,435.68/195,176.18 = 77,772.92/x
  3. Step 3: Cross multiply
    141,435.68x = 195,176.18 × 77,772.92
  4. Step 4: Simplify right side
    141,435.68x = 15,179,420,651.60
  5. Step 5: Solve for x
    x = 15,179,420,651.60/141,435.68
  6. Step 6: Final answer
    x = 107,323.85

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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.