Home / 215,723.88-297,628.58-120,212.52

Finding the Fourth Proportional to 215,723.88, 297,628.58 and 120,212.52

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Solution

The fourth proportional to 215,723.88, 297,628.58 and 120,212.52 is: 165,854.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,723.88 : 297,628.58 = 120,212.52 : x
  2. Step 2: Convert to fraction form
    215,723.88/297,628.58 = 120,212.52/x
  3. Step 3: Cross multiply
    215,723.88x = 297,628.58 × 120,212.52
  4. Step 4: Simplify right side
    215,723.88x = 35,778,681,625.82
  5. Step 5: Solve for x
    x = 35,778,681,625.82/215,723.88
  6. Step 6: Final answer
    x = 165,854.06

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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.