Home / 120,622.30-180,901.05-50,487.10

Finding the Fourth Proportional to 120,622.30, 180,901.05 and 50,487.10

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Solution

The fourth proportional to 120,622.30, 180,901.05 and 50,487.10 is: 75,717.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,622.30 : 180,901.05 = 50,487.10 : x
  2. Step 2: Convert to fraction form
    120,622.30/180,901.05 = 50,487.10/x
  3. Step 3: Cross multiply
    120,622.30x = 180,901.05 × 50,487.10
  4. Step 4: Simplify right side
    120,622.30x = 9,133,169,401.46
  5. Step 5: Solve for x
    x = 9,133,169,401.46/120,622.30
  6. Step 6: Final answer
    x = 75,717.09

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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.