Home / 150,638.38-207,899.40-86,976.07

Finding the Fourth Proportional to 150,638.38, 207,899.40 and 86,976.07

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Solution

The fourth proportional to 150,638.38, 207,899.40 and 86,976.07 is: 120,037.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,638.38 : 207,899.40 = 86,976.07 : x
  2. Step 2: Convert to fraction form
    150,638.38/207,899.40 = 86,976.07/x
  3. Step 3: Cross multiply
    150,638.38x = 207,899.40 × 86,976.07
  4. Step 4: Simplify right side
    150,638.38x = 18,082,272,767.36
  5. Step 5: Solve for x
    x = 18,082,272,767.36/150,638.38
  6. Step 6: Final answer
    x = 120,037.62

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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.