Home / 141,406.68-195,139.46-77,743.92

Finding the Fourth Proportional to 141,406.68, 195,139.46 and 77,743.92

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Solution

The fourth proportional to 141,406.68, 195,139.46 and 77,743.92 is: 107,285.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,406.68 : 195,139.46 = 77,743.92 : x
  2. Step 2: Convert to fraction form
    141,406.68/195,139.46 = 77,743.92/x
  3. Step 3: Cross multiply
    141,406.68x = 195,139.46 × 77,743.92
  4. Step 4: Simplify right side
    141,406.68x = 15,170,906,567.08
  5. Step 5: Solve for x
    x = 15,170,906,567.08/141,406.68
  6. Step 6: Final answer
    x = 107,285.64

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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.