Home / 216,526.08-324,768.19-66,726.15

Finding the Fourth Proportional to 216,526.08, 324,768.19 and 66,726.15

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Solution

The fourth proportional to 216,526.08, 324,768.19 and 66,726.15 is: 100,082.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,526.08 : 324,768.19 = 66,726.15 : x
  2. Step 2: Convert to fraction form
    216,526.08/324,768.19 = 66,726.15/x
  3. Step 3: Cross multiply
    216,526.08x = 324,768.19 × 66,726.15
  4. Step 4: Simplify right side
    216,526.08x = 21,670,530,961.17
  5. Step 5: Solve for x
    x = 21,670,530,961.17/216,526.08
  6. Step 6: Final answer
    x = 100,082.78

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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.