Home / 231,074.48-346,467-90,670.16

Finding the Fourth Proportional to 231,074.48, 346,467 and 90,670.16

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Solution

The fourth proportional to 231,074.48, 346,467 and 90,670.16 is: 135,948.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,074.48 : 346,467 = 90,670.16 : x
  2. Step 2: Convert to fraction form
    231,074.48/346,467 = 90,670.16/x
  3. Step 3: Cross multiply
    231,074.48x = 346,467 × 90,670.16
  4. Step 4: Simplify right side
    231,074.48x = 31,414,218,324.72
  5. Step 5: Solve for x
    x = 31,414,218,324.72/231,074.48
  6. Step 6: Final answer
    x = 135,948.45

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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.