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Finding the Fourth Proportional to 107,880.78, 161,673.39 and 68,465.55

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Solution

The fourth proportional to 107,880.78, 161,673.39 and 68,465.55 is: 102,604.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,880.78 : 161,673.39 = 68,465.55 : x
  2. Step 2: Convert to fraction form
    107,880.78/161,673.39 = 68,465.55/x
  3. Step 3: Cross multiply
    107,880.78x = 161,673.39 × 68,465.55
  4. Step 4: Simplify right side
    107,880.78x = 11,069,057,566.71
  5. Step 5: Solve for x
    x = 11,069,057,566.71/107,880.78
  6. Step 6: Final answer
    x = 102,604.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.