Home / 259,058.36-388,588.26-72,070.04

Finding the Fourth Proportional to 259,058.36, 388,588.26 and 72,070.04

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Solution

The fourth proportional to 259,058.36, 388,588.26 and 72,070.04 is: 108,105.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,058.36 : 388,588.26 = 72,070.04 : x
  2. Step 2: Convert to fraction form
    259,058.36/388,588.26 = 72,070.04/x
  3. Step 3: Cross multiply
    259,058.36x = 388,588.26 × 72,070.04
  4. Step 4: Simplify right side
    259,058.36x = 28,005,571,441.73
  5. Step 5: Solve for x
    x = 28,005,571,441.73/259,058.36
  6. Step 6: Final answer
    x = 108,105.26

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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.