Home / 127,553.10-191,349.90-43,321.20

Finding the Fourth Proportional to 127,553.10, 191,349.90 and 43,321.20

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Solution

The fourth proportional to 127,553.10, 191,349.90 and 43,321.20 is: 64,988.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,553.10 : 191,349.90 = 43,321.20 : x
  2. Step 2: Convert to fraction form
    127,553.10/191,349.90 = 43,321.20/x
  3. Step 3: Cross multiply
    127,553.10x = 191,349.90 × 43,321.20
  4. Step 4: Simplify right side
    127,553.10x = 8,289,507,287.88
  5. Step 5: Solve for x
    x = 8,289,507,287.88/127,553.10
  6. Step 6: Final answer
    x = 64,988.68

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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.