Home / 141,777.54-195,661.71-78,115.32

Finding the Fourth Proportional to 141,777.54, 195,661.71 and 78,115.32

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Solution

The fourth proportional to 141,777.54, 195,661.71 and 78,115.32 is: 107,803.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,777.54 : 195,661.71 = 78,115.32 : x
  2. Step 2: Convert to fraction form
    141,777.54/195,661.71 = 78,115.32/x
  3. Step 3: Cross multiply
    141,777.54x = 195,661.71 × 78,115.32
  4. Step 4: Simplify right side
    141,777.54x = 15,284,177,088.40
  5. Step 5: Solve for x
    x = 15,284,177,088.40/141,777.54
  6. Step 6: Final answer
    x = 107,803.94

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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.