Home / 162,128.22-242,694.06-138,213.42

Finding the Fourth Proportional to 162,128.22, 242,694.06 and 138,213.42

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Solution

The fourth proportional to 162,128.22, 242,694.06 and 138,213.42 is: 206,895.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,128.22 : 242,694.06 = 138,213.42 : x
  2. Step 2: Convert to fraction form
    162,128.22/242,694.06 = 138,213.42/x
  3. Step 3: Cross multiply
    162,128.22x = 242,694.06 × 138,213.42
  4. Step 4: Simplify right side
    162,128.22x = 33,543,576,046.29
  5. Step 5: Solve for x
    x = 33,543,576,046.29/162,128.22
  6. Step 6: Final answer
    x = 206,895.36

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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.