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Finding the Fourth Proportional to 115,574.56, 159,496.05 and 65,273.56

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Solution

The fourth proportional to 115,574.56, 159,496.05 and 65,273.56 is: 90,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,574.56 : 159,496.05 = 65,273.56 : x
  2. Step 2: Convert to fraction form
    115,574.56/159,496.05 = 65,273.56/x
  3. Step 3: Cross multiply
    115,574.56x = 159,496.05 × 65,273.56
  4. Step 4: Simplify right side
    115,574.56x = 10,410,874,989.44
  5. Step 5: Solve for x
    x = 10,410,874,989.44/115,574.56
  6. Step 6: Final answer
    x = 90,079.30

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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.