Home / 111,944.20-167,916.30-103,390.60

Finding the Fourth Proportional to 111,944.20, 167,916.30 and 103,390.60

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Solution

The fourth proportional to 111,944.20, 167,916.30 and 103,390.60 is: 155,085.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,944.20 : 167,916.30 = 103,390.60 : x
  2. Step 2: Convert to fraction form
    111,944.20/167,916.30 = 103,390.60/x
  3. Step 3: Cross multiply
    111,944.20x = 167,916.30 × 103,390.60
  4. Step 4: Simplify right side
    111,944.20x = 17,360,967,006.78
  5. Step 5: Solve for x
    x = 17,360,967,006.78/111,944.20
  6. Step 6: Final answer
    x = 155,085.90

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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.