Home / 150,215.31-207,319.89-85,684.23

Finding the Fourth Proportional to 150,215.31, 207,319.89 and 85,684.23

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Solution

The fourth proportional to 150,215.31, 207,319.89 and 85,684.23 is: 118,257.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,215.31 : 207,319.89 = 85,684.23 : x
  2. Step 2: Convert to fraction form
    150,215.31/207,319.89 = 85,684.23/x
  3. Step 3: Cross multiply
    150,215.31x = 207,319.89 × 85,684.23
  4. Step 4: Simplify right side
    150,215.31x = 17,764,045,138.33
  5. Step 5: Solve for x
    x = 17,764,045,138.33/150,215.31
  6. Step 6: Final answer
    x = 118,257.22

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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.