Home / 216,343.84-324,631.94-90,071.25

Finding the Fourth Proportional to 216,343.84, 324,631.94 and 90,071.25

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Solution

The fourth proportional to 216,343.84, 324,631.94 and 90,071.25 is: 135,155.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,343.84 : 324,631.94 = 90,071.25 : x
  2. Step 2: Convert to fraction form
    216,343.84/324,631.94 = 90,071.25/x
  3. Step 3: Cross multiply
    216,343.84x = 324,631.94 × 90,071.25
  4. Step 4: Simplify right side
    216,343.84x = 29,240,004,625.73
  5. Step 5: Solve for x
    x = 29,240,004,625.73/216,343.84
  6. Step 6: Final answer
    x = 135,155.24

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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.