Home / 215,058.25-322,385.87-72,804.02

Finding the Fourth Proportional to 215,058.25, 322,385.87 and 72,804.02

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Solution

The fourth proportional to 215,058.25, 322,385.87 and 72,804.02 is: 109,137.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,058.25 : 322,385.87 = 72,804.02 : x
  2. Step 2: Convert to fraction form
    215,058.25/322,385.87 = 72,804.02/x
  3. Step 3: Cross multiply
    215,058.25x = 322,385.87 × 72,804.02
  4. Step 4: Simplify right side
    215,058.25x = 23,470,987,327.20
  5. Step 5: Solve for x
    x = 23,470,987,327.20/215,058.25
  6. Step 6: Final answer
    x = 109,137.81

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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.