Home / 161,687.28-223,135.35-90,067.35

Finding the Fourth Proportional to 161,687.28, 223,135.35 and 90,067.35

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Solution

The fourth proportional to 161,687.28, 223,135.35 and 90,067.35 is: 124,296.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,687.28 : 223,135.35 = 90,067.35 : x
  2. Step 2: Convert to fraction form
    161,687.28/223,135.35 = 90,067.35/x
  3. Step 3: Cross multiply
    161,687.28x = 223,135.35 × 90,067.35
  4. Step 4: Simplify right side
    161,687.28x = 20,097,209,665.82
  5. Step 5: Solve for x
    x = 20,097,209,665.82/161,687.28
  6. Step 6: Final answer
    x = 124,296.79

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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.