Home / 215,639.82-297,574.56-120,144.06

Finding the Fourth Proportional to 215,639.82, 297,574.56 and 120,144.06

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Solution

The fourth proportional to 215,639.82, 297,574.56 and 120,144.06 is: 165,794.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,639.82 : 297,574.56 = 120,144.06 : x
  2. Step 2: Convert to fraction form
    215,639.82/297,574.56 = 120,144.06/x
  3. Step 3: Cross multiply
    215,639.82x = 297,574.56 × 120,144.06
  4. Step 4: Simplify right side
    215,639.82x = 35,751,815,791.11
  5. Step 5: Solve for x
    x = 35,751,815,791.11/215,639.82
  6. Step 6: Final answer
    x = 165,794.13

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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.