Home / 223,047.32-307,805.57-121,072.73

Finding the Fourth Proportional to 223,047.32, 307,805.57 and 121,072.73

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Solution

The fourth proportional to 223,047.32, 307,805.57 and 121,072.73 is: 167,080.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,047.32 : 307,805.57 = 121,072.73 : x
  2. Step 2: Convert to fraction form
    223,047.32/307,805.57 = 121,072.73/x
  3. Step 3: Cross multiply
    223,047.32x = 307,805.57 × 121,072.73
  4. Step 4: Simplify right side
    223,047.32x = 37,266,858,978.74
  5. Step 5: Solve for x
    x = 37,266,858,978.74/223,047.32
  6. Step 6: Final answer
    x = 167,080.51

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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.