Home / 111,816.20-154,311.73-64,069.67

Finding the Fourth Proportional to 111,816.20, 154,311.73 and 64,069.67

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Solution

The fourth proportional to 111,816.20, 154,311.73 and 64,069.67 is: 88,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,816.20 : 154,311.73 = 64,069.67 : x
  2. Step 2: Convert to fraction form
    111,816.20/154,311.73 = 64,069.67/x
  3. Step 3: Cross multiply
    111,816.20x = 154,311.73 × 64,069.67
  4. Step 4: Simplify right side
    111,816.20x = 9,886,701,618.23
  5. Step 5: Solve for x
    x = 9,886,701,618.23/111,816.20
  6. Step 6: Final answer
    x = 88,419.22

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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.