Home / 109,862.20-164,793.30-90,179.20

Finding the Fourth Proportional to 109,862.20, 164,793.30 and 90,179.20

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Solution

The fourth proportional to 109,862.20, 164,793.30 and 90,179.20 is: 135,268.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,862.20 : 164,793.30 = 90,179.20 : x
  2. Step 2: Convert to fraction form
    109,862.20/164,793.30 = 90,179.20/x
  3. Step 3: Cross multiply
    109,862.20x = 164,793.30 × 90,179.20
  4. Step 4: Simplify right side
    109,862.20x = 14,860,927,959.36
  5. Step 5: Solve for x
    x = 14,860,927,959.36/109,862.20
  6. Step 6: Final answer
    x = 135,268.80

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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.