Home / 127,748.20-191,622.30-48,821.80

Finding the Fourth Proportional to 127,748.20, 191,622.30 and 48,821.80

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Solution

The fourth proportional to 127,748.20, 191,622.30 and 48,821.80 is: 73,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,748.20 : 191,622.30 = 48,821.80 : x
  2. Step 2: Convert to fraction form
    127,748.20/191,622.30 = 48,821.80/x
  3. Step 3: Cross multiply
    127,748.20x = 191,622.30 × 48,821.80
  4. Step 4: Simplify right side
    127,748.20x = 9,355,345,606.14
  5. Step 5: Solve for x
    x = 9,355,345,606.14/127,748.20
  6. Step 6: Final answer
    x = 73,232.70

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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.