Home / 121,277.50-181,694.59-87,914.82

Finding the Fourth Proportional to 121,277.50, 181,694.59 and 87,914.82

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Solution

The fourth proportional to 121,277.50, 181,694.59 and 87,914.82 is: 131,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,277.50 : 181,694.59 = 87,914.82 : x
  2. Step 2: Convert to fraction form
    121,277.50/181,694.59 = 87,914.82/x
  3. Step 3: Cross multiply
    121,277.50x = 181,694.59 × 87,914.82
  4. Step 4: Simplify right side
    121,277.50x = 15,973,647,108.88
  5. Step 5: Solve for x
    x = 15,973,647,108.88/121,277.50
  6. Step 6: Final answer
    x = 131,711.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.