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Finding the Fourth Proportional to 115,349.76, 159,179.52 and 65,053.44

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Solution

The fourth proportional to 115,349.76, 159,179.52 and 65,053.44 is: 89,771.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,349.76 : 159,179.52 = 65,053.44 : x
  2. Step 2: Convert to fraction form
    115,349.76/159,179.52 = 65,053.44/x
  3. Step 3: Cross multiply
    115,349.76x = 159,179.52 × 65,053.44
  4. Step 4: Simplify right side
    115,349.76x = 10,355,175,353.55
  5. Step 5: Solve for x
    x = 10,355,175,353.55/115,349.76
  6. Step 6: Final answer
    x = 89,771.97

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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.