Home / 216,334.01-324,617.20-90,061.42

Finding the Fourth Proportional to 216,334.01, 324,617.20 and 90,061.42

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Solution

The fourth proportional to 216,334.01, 324,617.20 and 90,061.42 is: 135,140.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,334.01 : 324,617.20 = 90,061.42 : x
  2. Step 2: Convert to fraction form
    216,334.01/324,617.20 = 90,061.42/x
  3. Step 3: Cross multiply
    216,334.01x = 324,617.20 × 90,061.42
  4. Step 4: Simplify right side
    216,334.01x = 29,235,486,066.98
  5. Step 5: Solve for x
    x = 29,235,486,066.98/216,334.01
  6. Step 6: Final answer
    x = 135,140.50

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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.