Home / 212,174.66-318,065.16-71,835.14

Finding the Fourth Proportional to 212,174.66, 318,065.16 and 71,835.14

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Solution

The fourth proportional to 212,174.66, 318,065.16 and 71,835.14 is: 107,686.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,174.66 : 318,065.16 = 71,835.14 : x
  2. Step 2: Convert to fraction form
    212,174.66/318,065.16 = 71,835.14/x
  3. Step 3: Cross multiply
    212,174.66x = 318,065.16 × 71,835.14
  4. Step 4: Simplify right side
    212,174.66x = 22,848,255,297.72
  5. Step 5: Solve for x
    x = 22,848,255,297.72/212,174.66
  6. Step 6: Final answer
    x = 107,686.07

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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.