Home / 141,930.35-212,637.18-82,586.11

Finding the Fourth Proportional to 141,930.35, 212,637.18 and 82,586.11

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Solution

The fourth proportional to 141,930.35, 212,637.18 and 82,586.11 is: 123,728.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,930.35 : 212,637.18 = 82,586.11 : x
  2. Step 2: Convert to fraction form
    141,930.35/212,637.18 = 82,586.11/x
  3. Step 3: Cross multiply
    141,930.35x = 212,637.18 × 82,586.11
  4. Step 4: Simplify right side
    141,930.35x = 17,560,877,537.57
  5. Step 5: Solve for x
    x = 17,560,877,537.57/141,930.35
  6. Step 6: Final answer
    x = 123,728.84

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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.