Home / 226,025.76-311,838.12-129,160.02

Finding the Fourth Proportional to 226,025.76, 311,838.12 and 129,160.02

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Solution

The fourth proportional to 226,025.76, 311,838.12 and 129,160.02 is: 178,196.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,025.76 : 311,838.12 = 129,160.02 : x
  2. Step 2: Convert to fraction form
    226,025.76/311,838.12 = 129,160.02/x
  3. Step 3: Cross multiply
    226,025.76x = 311,838.12 × 129,160.02
  4. Step 4: Simplify right side
    226,025.76x = 40,277,017,815.96
  5. Step 5: Solve for x
    x = 40,277,017,815.96/226,025.76
  6. Step 6: Final answer
    x = 178,196.58

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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.