Home / 221,096.92-305,111.12-130,453.04

Finding the Fourth Proportional to 221,096.92, 305,111.12 and 130,453.04

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Solution

The fourth proportional to 221,096.92, 305,111.12 and 130,453.04 is: 180,023.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,096.92 : 305,111.12 = 130,453.04 : x
  2. Step 2: Convert to fraction form
    221,096.92/305,111.12 = 130,453.04/x
  3. Step 3: Cross multiply
    221,096.92x = 305,111.12 × 130,453.04
  4. Step 4: Simplify right side
    221,096.92x = 39,802,673,141.80
  5. Step 5: Solve for x
    x = 39,802,673,141.80/221,096.92
  6. Step 6: Final answer
    x = 180,023.64

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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.