Home / 111,432.25-167,128.96-51,455.62

Finding the Fourth Proportional to 111,432.25, 167,128.96 and 51,455.62

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Solution

The fourth proportional to 111,432.25, 167,128.96 and 51,455.62 is: 77,174.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,432.25 : 167,128.96 = 51,455.62 : x
  2. Step 2: Convert to fraction form
    111,432.25/167,128.96 = 51,455.62/x
  3. Step 3: Cross multiply
    111,432.25x = 167,128.96 × 51,455.62
  4. Step 4: Simplify right side
    111,432.25x = 8,599,724,256.76
  5. Step 5: Solve for x
    x = 8,599,724,256.76/111,432.25
  6. Step 6: Final answer
    x = 77,174.46

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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.