Home / 141,645.25-195,469.41-77,981.68

Finding the Fourth Proportional to 141,645.25, 195,469.41 and 77,981.68

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Solution

The fourth proportional to 141,645.25, 195,469.41 and 77,981.68 is: 107,614.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,645.25 : 195,469.41 = 77,981.68 : x
  2. Step 2: Convert to fraction form
    141,645.25/195,469.41 = 77,981.68/x
  3. Step 3: Cross multiply
    141,645.25x = 195,469.41 × 77,981.68
  4. Step 4: Simplify right side
    141,645.25x = 15,243,032,980.41
  5. Step 5: Solve for x
    x = 15,243,032,980.41/141,645.25
  6. Step 6: Final answer
    x = 107,614.15

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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.