Home / 166,985.28-250,296.48-78,183.36

Finding the Fourth Proportional to 166,985.28, 250,296.48 and 78,183.36

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Solution

The fourth proportional to 166,985.28, 250,296.48 and 78,183.36 is: 117,190.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,985.28 : 250,296.48 = 78,183.36 : x
  2. Step 2: Convert to fraction form
    166,985.28/250,296.48 = 78,183.36/x
  3. Step 3: Cross multiply
    166,985.28x = 250,296.48 × 78,183.36
  4. Step 4: Simplify right side
    166,985.28x = 19,569,019,802.57
  5. Step 5: Solve for x
    x = 19,569,019,802.57/166,985.28
  6. Step 6: Final answer
    x = 117,190.09

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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.