Home / 150,085.11-225,015.89-90,906.51

Finding the Fourth Proportional to 150,085.11, 225,015.89 and 90,906.51

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Solution

The fourth proportional to 150,085.11, 225,015.89 and 90,906.51 is: 136,292.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,085.11 : 225,015.89 = 90,906.51 : x
  2. Step 2: Convert to fraction form
    150,085.11/225,015.89 = 90,906.51/x
  3. Step 3: Cross multiply
    150,085.11x = 225,015.89 × 90,906.51
  4. Step 4: Simplify right side
    150,085.11x = 20,455,408,799.91
  5. Step 5: Solve for x
    x = 20,455,408,799.91/150,085.11
  6. Step 6: Final answer
    x = 136,292.06

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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.