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Finding the Fourth Proportional to 117,783.29, 162,545.24 and 65,396.74

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Solution

The fourth proportional to 117,783.29, 162,545.24 and 65,396.74 is: 90,249.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,783.29 : 162,545.24 = 65,396.74 : x
  2. Step 2: Convert to fraction form
    117,783.29/162,545.24 = 65,396.74/x
  3. Step 3: Cross multiply
    117,783.29x = 162,545.24 × 65,396.74
  4. Step 4: Simplify right side
    117,783.29x = 10,629,928,555.65
  5. Step 5: Solve for x
    x = 10,629,928,555.65/117,783.29
  6. Step 6: Final answer
    x = 90,249.89

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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.