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Finding the Fourth Proportional to 115,399.84, 159,251.52 and 65,098.48

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Solution

The fourth proportional to 115,399.84, 159,251.52 and 65,098.48 is: 89,835.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,399.84 : 159,251.52 = 65,098.48 : x
  2. Step 2: Convert to fraction form
    115,399.84/159,251.52 = 65,098.48/x
  3. Step 3: Cross multiply
    115,399.84x = 159,251.52 × 65,098.48
  4. Step 4: Simplify right side
    115,399.84x = 10,367,031,889.69
  5. Step 5: Solve for x
    x = 10,367,031,889.69/115,399.84
  6. Step 6: Final answer
    x = 89,835.76

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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.