Home / 133,077.04-199,662.78-83,099.20

Finding the Fourth Proportional to 133,077.04, 199,662.78 and 83,099.20

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Solution

The fourth proportional to 133,077.04, 199,662.78 and 83,099.20 is: 124,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,077.04 : 199,662.78 = 83,099.20 : x
  2. Step 2: Convert to fraction form
    133,077.04/199,662.78 = 83,099.20/x
  3. Step 3: Cross multiply
    133,077.04x = 199,662.78 × 83,099.20
  4. Step 4: Simplify right side
    133,077.04x = 16,591,817,287.78
  5. Step 5: Solve for x
    x = 16,591,817,287.78/133,077.04
  6. Step 6: Final answer
    x = 124,678.29

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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.