Home / 115,767.12-159,711.58-75,466.74

Finding the Fourth Proportional to 115,767.12, 159,711.58 and 75,466.74

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Solution

The fourth proportional to 115,767.12, 159,711.58 and 75,466.74 is: 104,113.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,767.12 : 159,711.58 = 75,466.74 : x
  2. Step 2: Convert to fraction form
    115,767.12/159,711.58 = 75,466.74/x
  3. Step 3: Cross multiply
    115,767.12x = 159,711.58 × 75,466.74
  4. Step 4: Simplify right side
    115,767.12x = 12,052,912,282.85
  5. Step 5: Solve for x
    x = 12,052,912,282.85/115,767.12
  6. Step 6: Final answer
    x = 104,113.43

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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.