Home / 120,105.32-180,017.30-48,983.60

Finding the Fourth Proportional to 120,105.32, 180,017.30 and 48,983.60

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Solution

The fourth proportional to 120,105.32, 180,017.30 and 48,983.60 is: 73,418.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,105.32 : 180,017.30 = 48,983.60 : x
  2. Step 2: Convert to fraction form
    120,105.32/180,017.30 = 48,983.60/x
  3. Step 3: Cross multiply
    120,105.32x = 180,017.30 × 48,983.60
  4. Step 4: Simplify right side
    120,105.32x = 8,817,895,416.28
  5. Step 5: Solve for x
    x = 8,817,895,416.28/120,105.32
  6. Step 6: Final answer
    x = 73,418.03

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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.