Home / 109,184.20-163,680.30-74,009.80

Finding the Fourth Proportional to 109,184.20, 163,680.30 and 74,009.80

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Solution

The fourth proportional to 109,184.20, 163,680.30 and 74,009.80 is: 110,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,184.20 : 163,680.30 = 74,009.80 : x
  2. Step 2: Convert to fraction form
    109,184.20/163,680.30 = 74,009.80/x
  3. Step 3: Cross multiply
    109,184.20x = 163,680.30 × 74,009.80
  4. Step 4: Simplify right side
    109,184.20x = 12,113,946,266.94
  5. Step 5: Solve for x
    x = 12,113,946,266.94/109,184.20
  6. Step 6: Final answer
    x = 110,949.63

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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.