Home / 223,739.16-308,754.18-121,766.64

Finding the Fourth Proportional to 223,739.16, 308,754.18 and 121,766.64

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Solution

The fourth proportional to 223,739.16, 308,754.18 and 121,766.64 is: 168,034.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,739.16 : 308,754.18 = 121,766.64 : x
  2. Step 2: Convert to fraction form
    223,739.16/308,754.18 = 121,766.64/x
  3. Step 3: Cross multiply
    223,739.16x = 308,754.18 × 121,766.64
  4. Step 4: Simplify right side
    223,739.16x = 37,595,959,084.56
  5. Step 5: Solve for x
    x = 37,595,959,084.56/223,739.16
  6. Step 6: Final answer
    x = 168,034.77

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1.5x scale

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.