Home / 141,811.44-195,701.08-78,151.52

Finding the Fourth Proportional to 141,811.44, 195,701.08 and 78,151.52

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Solution

The fourth proportional to 141,811.44, 195,701.08 and 78,151.52 is: 107,849.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,811.44 : 195,701.08 = 78,151.52 : x
  2. Step 2: Convert to fraction form
    141,811.44/195,701.08 = 78,151.52/x
  3. Step 3: Cross multiply
    141,811.44x = 195,701.08 × 78,151.52
  4. Step 4: Simplify right side
    141,811.44x = 15,294,336,867.64
  5. Step 5: Solve for x
    x = 15,294,336,867.64/141,811.44
  6. Step 6: Final answer
    x = 107,849.81

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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.