Home / 138,071.10-207,109.22-43,299.18

Finding the Fourth Proportional to 138,071.10, 207,109.22 and 43,299.18

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Solution

The fourth proportional to 138,071.10, 207,109.22 and 43,299.18 is: 64,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,071.10 : 207,109.22 = 43,299.18 : x
  2. Step 2: Convert to fraction form
    138,071.10/207,109.22 = 43,299.18/x
  3. Step 3: Cross multiply
    138,071.10x = 207,109.22 × 43,299.18
  4. Step 4: Simplify right side
    138,071.10x = 8,967,659,396.44
  5. Step 5: Solve for x
    x = 8,967,659,396.44/138,071.10
  6. Step 6: Final answer
    x = 64,949.58

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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.