Home / 141,977.06-212,965.68-79,691.30

Finding the Fourth Proportional to 141,977.06, 212,965.68 and 79,691.30

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Solution

The fourth proportional to 141,977.06, 212,965.68 and 79,691.30 is: 119,537.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,977.06 : 212,965.68 = 79,691.30 : x
  2. Step 2: Convert to fraction form
    141,977.06/212,965.68 = 79,691.30/x
  3. Step 3: Cross multiply
    141,977.06x = 212,965.68 × 79,691.30
  4. Step 4: Simplify right side
    141,977.06x = 16,971,511,894.58
  5. Step 5: Solve for x
    x = 16,971,511,894.58/141,977.06
  6. Step 6: Final answer
    x = 119,537.00

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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.