Home / 221,776.92-306,028.53-131,136.30

Finding the Fourth Proportional to 221,776.92, 306,028.53 and 131,136.30

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Solution

The fourth proportional to 221,776.92, 306,028.53 and 131,136.30 is: 180,954.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,776.92 : 306,028.53 = 131,136.30 : x
  2. Step 2: Convert to fraction form
    221,776.92/306,028.53 = 131,136.30/x
  3. Step 3: Cross multiply
    221,776.92x = 306,028.53 × 131,136.30
  4. Step 4: Simplify right side
    221,776.92x = 40,131,449,118.64
  5. Step 5: Solve for x
    x = 40,131,449,118.64/221,776.92
  6. Step 6: Final answer
    x = 180,954.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.