Home / 109,028.20-163,542.30-98,660.20

Finding the Fourth Proportional to 109,028.20, 163,542.30 and 98,660.20

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Solution

The fourth proportional to 109,028.20, 163,542.30 and 98,660.20 is: 147,990.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,028.20 : 163,542.30 = 98,660.20 : x
  2. Step 2: Convert to fraction form
    109,028.20/163,542.30 = 98,660.20/x
  3. Step 3: Cross multiply
    109,028.20x = 163,542.30 × 98,660.20
  4. Step 4: Simplify right side
    109,028.20x = 16,135,116,026.46
  5. Step 5: Solve for x
    x = 16,135,116,026.46/109,028.20
  6. Step 6: Final answer
    x = 147,990.30

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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.