Home / 109,929.20-164,764.20-57,311.60

Finding the Fourth Proportional to 109,929.20, 164,764.20 and 57,311.60

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Solution

The fourth proportional to 109,929.20, 164,764.20 and 57,311.60 is: 85,899.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,929.20 : 164,764.20 = 57,311.60 : x
  2. Step 2: Convert to fraction form
    109,929.20/164,764.20 = 57,311.60/x
  3. Step 3: Cross multiply
    109,929.20x = 164,764.20 × 57,311.60
  4. Step 4: Simplify right side
    109,929.20x = 9,442,899,924.72
  5. Step 5: Solve for x
    x = 9,442,899,924.72/109,929.20
  6. Step 6: Final answer
    x = 85,899.83

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1.5x scale

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.