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Finding the Fourth Proportional to 115,336.68, 159,164.64 and 65,035.68

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Solution

The fourth proportional to 115,336.68, 159,164.64 and 65,035.68 is: 89,749.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,336.68 : 159,164.64 = 65,035.68 : x
  2. Step 2: Convert to fraction form
    115,336.68/159,164.64 = 65,035.68/x
  3. Step 3: Cross multiply
    115,336.68x = 159,164.64 × 65,035.68
  4. Step 4: Simplify right side
    115,336.68x = 10,351,380,594.36
  5. Step 5: Solve for x
    x = 10,351,380,594.36/115,336.68
  6. Step 6: Final answer
    x = 89,749.25

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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.