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Finding the Fourth Proportional to 216,083.54, 324,159.87 and 91,425.62

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Solution

The fourth proportional to 216,083.54, 324,159.87 and 91,425.62 is: 137,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,083.54 : 324,159.87 = 91,425.62 : x
  2. Step 2: Convert to fraction form
    216,083.54/324,159.87 = 91,425.62/x
  3. Step 3: Cross multiply
    216,083.54x = 324,159.87 × 91,425.62
  4. Step 4: Simplify right side
    216,083.54x = 29,636,517,093.87
  5. Step 5: Solve for x
    x = 29,636,517,093.87/216,083.54
  6. Step 6: Final answer
    x = 137,153.05

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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.