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Finding the Fourth Proportional to 115,797.53, 159,789.30 and 64,807.22

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Solution

The fourth proportional to 115,797.53, 159,789.30 and 64,807.22 is: 89,427.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,797.53 : 159,789.30 = 64,807.22 : x
  2. Step 2: Convert to fraction form
    115,797.53/159,789.30 = 64,807.22/x
  3. Step 3: Cross multiply
    115,797.53x = 159,789.30 × 64,807.22
  4. Step 4: Simplify right side
    115,797.53x = 10,355,500,318.75
  5. Step 5: Solve for x
    x = 10,355,500,318.75/115,797.53
  6. Step 6: Final answer
    x = 89,427.64

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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.