Home / 215,910.93-297,860.72-125,214.33

Finding the Fourth Proportional to 215,910.93, 297,860.72 and 125,214.33

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Solution

The fourth proportional to 215,910.93, 297,860.72 and 125,214.33 is: 172,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,910.93 : 297,860.72 = 125,214.33 : x
  2. Step 2: Convert to fraction form
    215,910.93/297,860.72 = 125,214.33/x
  3. Step 3: Cross multiply
    215,910.93x = 297,860.72 × 125,214.33
  4. Step 4: Simplify right side
    215,910.93x = 37,296,430,979.02
  5. Step 5: Solve for x
    x = 37,296,430,979.02/215,910.93
  6. Step 6: Final answer
    x = 172,739.89

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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.