Home / 115,947.96-173,605.72-87,782.80

Finding the Fourth Proportional to 115,947.96, 173,605.72 and 87,782.80

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Solution

The fourth proportional to 115,947.96, 173,605.72 and 87,782.80 is: 131,434.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,947.96 : 173,605.72 = 87,782.80 : x
  2. Step 2: Convert to fraction form
    115,947.96/173,605.72 = 87,782.80/x
  3. Step 3: Cross multiply
    115,947.96x = 173,605.72 × 87,782.80
  4. Step 4: Simplify right side
    115,947.96x = 15,239,596,197.62
  5. Step 5: Solve for x
    x = 15,239,596,197.62/115,947.96
  6. Step 6: Final answer
    x = 131,434.79

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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.