Home / 109,675.20-164,512.80-57,187.20

Finding the Fourth Proportional to 109,675.20, 164,512.80 and 57,187.20

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Solution

The fourth proportional to 109,675.20, 164,512.80 and 57,187.20 is: 85,780.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,675.20 : 164,512.80 = 57,187.20 : x
  2. Step 2: Convert to fraction form
    109,675.20/164,512.80 = 57,187.20/x
  3. Step 3: Cross multiply
    109,675.20x = 164,512.80 × 57,187.20
  4. Step 4: Simplify right side
    109,675.20x = 9,408,026,396.16
  5. Step 5: Solve for x
    x = 9,408,026,396.16/109,675.20
  6. Step 6: Final answer
    x = 85,780.80

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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.