Home / 111,478.10-167,176.76-47,440.50

Finding the Fourth Proportional to 111,478.10, 167,176.76 and 47,440.50

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Solution

The fourth proportional to 111,478.10, 167,176.76 and 47,440.50 is: 71,143.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,478.10 : 167,176.76 = 47,440.50 : x
  2. Step 2: Convert to fraction form
    111,478.10/167,176.76 = 47,440.50/x
  3. Step 3: Cross multiply
    111,478.10x = 167,176.76 × 47,440.50
  4. Step 4: Simplify right side
    111,478.10x = 7,930,948,845.58
  5. Step 5: Solve for x
    x = 7,930,948,845.58/111,478.10
  6. Step 6: Final answer
    x = 71,143.56

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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.