Home / 141,442.92-195,196.80-77,786.64

Finding the Fourth Proportional to 141,442.92, 195,196.80 and 77,786.64

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Solution

The fourth proportional to 141,442.92, 195,196.80 and 77,786.64 is: 107,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,442.92 : 195,196.80 = 77,786.64 : x
  2. Step 2: Convert to fraction form
    141,442.92/195,196.80 = 77,786.64/x
  3. Step 3: Cross multiply
    141,442.92x = 195,196.80 × 77,786.64
  4. Step 4: Simplify right side
    141,442.92x = 15,183,703,210.75
  5. Step 5: Solve for x
    x = 15,183,703,210.75/141,442.92
  6. Step 6: Final answer
    x = 107,348.63

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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.