Home / 150,463.20-207,661.32-86,788.56

Finding the Fourth Proportional to 150,463.20, 207,661.32 and 86,788.56

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Solution

The fourth proportional to 150,463.20, 207,661.32 and 86,788.56 is: 119,780.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,463.20 : 207,661.32 = 86,788.56 : x
  2. Step 2: Convert to fraction form
    150,463.20/207,661.32 = 86,788.56/x
  3. Step 3: Cross multiply
    150,463.20x = 207,661.32 × 86,788.56
  4. Step 4: Simplify right side
    150,463.20x = 18,022,626,930.50
  5. Step 5: Solve for x
    x = 18,022,626,930.50/150,463.20
  6. Step 6: Final answer
    x = 119,780.96

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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.