Home / 200,111.24-300,182.34-66,991.76

Finding the Fourth Proportional to 200,111.24, 300,182.34 and 66,991.76

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Solution

The fourth proportional to 200,111.24, 300,182.34 and 66,991.76 is: 100,492.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,111.24 : 300,182.34 = 66,991.76 : x
  2. Step 2: Convert to fraction form
    200,111.24/300,182.34 = 66,991.76/x
  3. Step 3: Cross multiply
    200,111.24x = 300,182.34 × 66,991.76
  4. Step 4: Simplify right side
    200,111.24x = 20,109,743,277.52
  5. Step 5: Solve for x
    x = 20,109,743,277.52/200,111.24
  6. Step 6: Final answer
    x = 100,492.82

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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.