Home / 106,221.87-159,338.10-30,331.67

Finding the Fourth Proportional to 106,221.87, 159,338.10 and 30,331.67

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Solution

The fourth proportional to 106,221.87, 159,338.10 and 30,331.67 is: 45,499.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,221.87 : 159,338.10 = 30,331.67 : x
  2. Step 2: Convert to fraction form
    106,221.87/159,338.10 = 30,331.67/x
  3. Step 3: Cross multiply
    106,221.87x = 159,338.10 × 30,331.67
  4. Step 4: Simplify right side
    106,221.87x = 4,832,989,870.94
  5. Step 5: Solve for x
    x = 4,832,989,870.94/106,221.87
  6. Step 6: Final answer
    x = 45,499.01

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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.