Home / 212,229.36-318,346.54-84,176.87

Finding the Fourth Proportional to 212,229.36, 318,346.54 and 84,176.87

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Solution

The fourth proportional to 212,229.36, 318,346.54 and 84,176.87 is: 126,266.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,229.36 : 318,346.54 = 84,176.87 : x
  2. Step 2: Convert to fraction form
    212,229.36/318,346.54 = 84,176.87/x
  3. Step 3: Cross multiply
    212,229.36x = 318,346.54 × 84,176.87
  4. Step 4: Simplify right side
    212,229.36x = 26,797,413,510.35
  5. Step 5: Solve for x
    x = 26,797,413,510.35/212,229.36
  6. Step 6: Final answer
    x = 126,266.29

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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.