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Finding the Fourth Proportional to 144,171.97, 216,304.22 and 69,297.54

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Solution

The fourth proportional to 144,171.97, 216,304.22 and 69,297.54 is: 103,968.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,171.97 : 216,304.22 = 69,297.54 : x
  2. Step 2: Convert to fraction form
    144,171.97/216,304.22 = 69,297.54/x
  3. Step 3: Cross multiply
    144,171.97x = 216,304.22 × 69,297.54
  4. Step 4: Simplify right side
    144,171.97x = 14,989,350,337.62
  5. Step 5: Solve for x
    x = 14,989,350,337.62/144,171.97
  6. Step 6: Final answer
    x = 103,968.55

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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.