Home / 215,429.85-323,292.45-75,188.49

Finding the Fourth Proportional to 215,429.85, 323,292.45 and 75,188.49

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Solution

The fourth proportional to 215,429.85, 323,292.45 and 75,188.49 is: 112,834.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,429.85 : 323,292.45 = 75,188.49 : x
  2. Step 2: Convert to fraction form
    215,429.85/323,292.45 = 75,188.49/x
  3. Step 3: Cross multiply
    215,429.85x = 323,292.45 × 75,188.49
  4. Step 4: Simplify right side
    215,429.85x = 24,307,871,143.90
  5. Step 5: Solve for x
    x = 24,307,871,143.90/215,429.85
  6. Step 6: Final answer
    x = 112,834.28

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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.