Home / 150,548.49-207,766.11-86,890.38

Finding the Fourth Proportional to 150,548.49, 207,766.11 and 86,890.38

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Solution

The fourth proportional to 150,548.49, 207,766.11 and 86,890.38 is: 119,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,548.49 : 207,766.11 = 86,890.38 : x
  2. Step 2: Convert to fraction form
    150,548.49/207,766.11 = 86,890.38/x
  3. Step 3: Cross multiply
    150,548.49x = 207,766.11 × 86,890.38
  4. Step 4: Simplify right side
    150,548.49x = 18,052,876,249.02
  5. Step 5: Solve for x
    x = 18,052,876,249.02/150,548.49
  6. Step 6: Final answer
    x = 119,914.03

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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.