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Finding the Fourth Proportional to 115,338.60, 159,167 and 65,037.24

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Solution

The fourth proportional to 115,338.60, 159,167 and 65,037.24 is: 89,751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,338.60 : 159,167 = 65,037.24 : x
  2. Step 2: Convert to fraction form
    115,338.60/159,167 = 65,037.24/x
  3. Step 3: Cross multiply
    115,338.60x = 159,167 × 65,037.24
  4. Step 4: Simplify right side
    115,338.60x = 10,351,782,379.08
  5. Step 5: Solve for x
    x = 10,351,782,379.08/115,338.60
  6. Step 6: Final answer
    x = 89,751.24

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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.