Home / 111,944.30-168,046.05-67,621.10

Finding the Fourth Proportional to 111,944.30, 168,046.05 and 67,621.10

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Solution

The fourth proportional to 111,944.30, 168,046.05 and 67,621.10 is: 101,509.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,944.30 : 168,046.05 = 67,621.10 : x
  2. Step 2: Convert to fraction form
    111,944.30/168,046.05 = 67,621.10/x
  3. Step 3: Cross multiply
    111,944.30x = 168,046.05 × 67,621.10
  4. Step 4: Simplify right side
    111,944.30x = 11,363,458,751.66
  5. Step 5: Solve for x
    x = 11,363,458,751.66/111,944.30
  6. Step 6: Final answer
    x = 101,509.94

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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.