Home / 215,745.04-297,721.28-135,216

Finding the Fourth Proportional to 215,745.04, 297,721.28 and 135,216

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Solution

The fourth proportional to 215,745.04, 297,721.28 and 135,216 is: 186,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,745.04 : 297,721.28 = 135,216 : x
  2. Step 2: Convert to fraction form
    215,745.04/297,721.28 = 135,216/x
  3. Step 3: Cross multiply
    215,745.04x = 297,721.28 × 135,216
  4. Step 4: Simplify right side
    215,745.04x = 40,256,680,596.48
  5. Step 5: Solve for x
    x = 40,256,680,596.48/215,745.04
  6. Step 6: Final answer
    x = 186,593.77

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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.