Home / 215,207.37-322,798.59-82,101.08

Finding the Fourth Proportional to 215,207.37, 322,798.59 and 82,101.08

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Solution

The fourth proportional to 215,207.37, 322,798.59 and 82,101.08 is: 123,146.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,207.37 : 322,798.59 = 82,101.08 : x
  2. Step 2: Convert to fraction form
    215,207.37/322,798.59 = 82,101.08/x
  3. Step 3: Cross multiply
    215,207.37x = 322,798.59 × 82,101.08
  4. Step 4: Simplify right side
    215,207.37x = 26,502,111,247.48
  5. Step 5: Solve for x
    x = 26,502,111,247.48/215,207.37
  6. Step 6: Final answer
    x = 123,146.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.