Home / 275,669.64-413,587.48-86,122.36

Finding the Fourth Proportional to 275,669.64, 413,587.48 and 86,122.36

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Solution

The fourth proportional to 275,669.64, 413,587.48 and 86,122.36 is: 129,209.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,669.64 : 413,587.48 = 86,122.36 : x
  2. Step 2: Convert to fraction form
    275,669.64/413,587.48 = 86,122.36/x
  3. Step 3: Cross multiply
    275,669.64x = 413,587.48 × 86,122.36
  4. Step 4: Simplify right side
    275,669.64x = 35,619,129,844.05
  5. Step 5: Solve for x
    x = 35,619,129,844.05/275,669.64
  6. Step 6: Final answer
    x = 129,209.48

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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.