Home / 141,645.92-195,468.59-77,984.78

Finding the Fourth Proportional to 141,645.92, 195,468.59 and 77,984.78

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Solution

The fourth proportional to 141,645.92, 195,468.59 and 77,984.78 is: 107,617.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,645.92 : 195,468.59 = 77,984.78 : x
  2. Step 2: Convert to fraction form
    141,645.92/195,468.59 = 77,984.78/x
  3. Step 3: Cross multiply
    141,645.92x = 195,468.59 × 77,984.78
  4. Step 4: Simplify right side
    141,645.92x = 15,243,574,205.68
  5. Step 5: Solve for x
    x = 15,243,574,205.68/141,645.92
  6. Step 6: Final answer
    x = 107,617.46

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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.