Home / 141,799.64-212,498.85-78,647.54

Finding the Fourth Proportional to 141,799.64, 212,498.85 and 78,647.54

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Solution

The fourth proportional to 141,799.64, 212,498.85 and 78,647.54 is: 117,860.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,799.64 : 212,498.85 = 78,647.54 : x
  2. Step 2: Convert to fraction form
    141,799.64/212,498.85 = 78,647.54/x
  3. Step 3: Cross multiply
    141,799.64x = 212,498.85 × 78,647.54
  4. Step 4: Simplify right side
    141,799.64x = 16,712,511,805.33
  5. Step 5: Solve for x
    x = 16,712,511,805.33/141,799.64
  6. Step 6: Final answer
    x = 117,860.04

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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.