Home / 111,432.75-167,129.70-51,456.12

Finding the Fourth Proportional to 111,432.75, 167,129.70 and 51,456.12

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Solution

The fourth proportional to 111,432.75, 167,129.70 and 51,456.12 is: 77,175.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,432.75 : 167,129.70 = 51,456.12 : x
  2. Step 2: Convert to fraction form
    111,432.75/167,129.70 = 51,456.12/x
  3. Step 3: Cross multiply
    111,432.75x = 167,129.70 × 51,456.12
  4. Step 4: Simplify right side
    111,432.75x = 8,599,845,898.76
  5. Step 5: Solve for x
    x = 8,599,845,898.76/111,432.75
  6. Step 6: Final answer
    x = 77,175.21

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1.5x scale

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.