Home / 115,914.66-159,960.06-64,926.78

Finding the Fourth Proportional to 115,914.66, 159,960.06 and 64,926.78

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Solution

The fourth proportional to 115,914.66, 159,960.06 and 64,926.78 is: 89,597.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,914.66 : 159,960.06 = 64,926.78 : x
  2. Step 2: Convert to fraction form
    115,914.66/159,960.06 = 64,926.78/x
  3. Step 3: Cross multiply
    115,914.66x = 159,960.06 × 64,926.78
  4. Step 4: Simplify right side
    115,914.66x = 10,385,691,624.41
  5. Step 5: Solve for x
    x = 10,385,691,624.41/115,914.66
  6. Step 6: Final answer
    x = 89,597.74

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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.