Home / 216,943.25-324,941.09-90,199.17

Finding the Fourth Proportional to 216,943.25, 324,941.09 and 90,199.17

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Solution

The fourth proportional to 216,943.25, 324,941.09 and 90,199.17 is: 135,101.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,943.25 : 324,941.09 = 90,199.17 : x
  2. Step 2: Convert to fraction form
    216,943.25/324,941.09 = 90,199.17/x
  3. Step 3: Cross multiply
    216,943.25x = 324,941.09 × 90,199.17
  4. Step 4: Simplify right side
    216,943.25x = 29,309,416,165.90
  5. Step 5: Solve for x
    x = 29,309,416,165.90/216,943.25
  6. Step 6: Final answer
    x = 135,101.77

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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.