Home / 111,449.12-166,985.36-55,214.24

Finding the Fourth Proportional to 111,449.12, 166,985.36 and 55,214.24

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Solution

The fourth proportional to 111,449.12, 166,985.36 and 55,214.24 is: 82,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,449.12 : 166,985.36 = 55,214.24 : x
  2. Step 2: Convert to fraction form
    111,449.12/166,985.36 = 55,214.24/x
  3. Step 3: Cross multiply
    111,449.12x = 166,985.36 × 55,214.24
  4. Step 4: Simplify right side
    111,449.12x = 9,219,969,743.53
  5. Step 5: Solve for x
    x = 9,219,969,743.53/111,449.12
  6. Step 6: Final answer
    x = 82,728.06

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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.