Home / 111,445.12-166,979.36-55,210.24

Finding the Fourth Proportional to 111,445.12, 166,979.36 and 55,210.24

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Solution

The fourth proportional to 111,445.12, 166,979.36 and 55,210.24 is: 82,722.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,445.12 : 166,979.36 = 55,210.24 : x
  2. Step 2: Convert to fraction form
    111,445.12/166,979.36 = 55,210.24/x
  3. Step 3: Cross multiply
    111,445.12x = 166,979.36 × 55,210.24
  4. Step 4: Simplify right side
    111,445.12x = 9,218,970,540.65
  5. Step 5: Solve for x
    x = 9,218,970,540.65/111,445.12
  6. Step 6: Final answer
    x = 82,722.07

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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.