Home / 115,356.75-159,187.64-66,959.65

Finding the Fourth Proportional to 115,356.75, 159,187.64 and 66,959.65

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Solution

The fourth proportional to 115,356.75, 159,187.64 and 66,959.65 is: 92,401.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,356.75 : 159,187.64 = 66,959.65 : x
  2. Step 2: Convert to fraction form
    115,356.75/159,187.64 = 66,959.65/x
  3. Step 3: Cross multiply
    115,356.75x = 159,187.64 × 66,959.65
  4. Step 4: Simplify right side
    115,356.75x = 10,659,148,658.73
  5. Step 5: Solve for x
    x = 10,659,148,658.73/115,356.75
  6. Step 6: Final answer
    x = 92,401.60

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1.5x scale

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.