Home / 147,249.74-220,438.28-90,908.70

Finding the Fourth Proportional to 147,249.74, 220,438.28 and 90,908.70

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Solution

The fourth proportional to 147,249.74, 220,438.28 and 90,908.70 is: 136,093.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,249.74 : 220,438.28 = 90,908.70 : x
  2. Step 2: Convert to fraction form
    147,249.74/220,438.28 = 90,908.70/x
  3. Step 3: Cross multiply
    147,249.74x = 220,438.28 × 90,908.70
  4. Step 4: Simplify right side
    147,249.74x = 20,039,757,465.04
  5. Step 5: Solve for x
    x = 20,039,757,465.04/147,249.74
  6. Step 6: Final answer
    x = 136,093.67

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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.