Home / 120,098.28-179,267.97-105,911.01

Finding the Fourth Proportional to 120,098.28, 179,267.97 and 105,911.01

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Solution

The fourth proportional to 120,098.28, 179,267.97 and 105,911.01 is: 158,090.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,098.28 : 179,267.97 = 105,911.01 : x
  2. Step 2: Convert to fraction form
    120,098.28/179,267.97 = 105,911.01/x
  3. Step 3: Cross multiply
    120,098.28x = 179,267.97 × 105,911.01
  4. Step 4: Simplify right side
    120,098.28x = 18,986,451,763.35
  5. Step 5: Solve for x
    x = 18,986,451,763.35/120,098.28
  6. Step 6: Final answer
    x = 158,090.95

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.