Home / 109,879.54-151,636.74-62,140

Finding the Fourth Proportional to 109,879.54, 151,636.74 and 62,140

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Solution

The fourth proportional to 109,879.54, 151,636.74 and 62,140 is: 85,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,879.54 : 151,636.74 = 62,140 : x
  2. Step 2: Convert to fraction form
    109,879.54/151,636.74 = 62,140/x
  3. Step 3: Cross multiply
    109,879.54x = 151,636.74 × 62,140
  4. Step 4: Simplify right side
    109,879.54x = 9,422,707,023.60
  5. Step 5: Solve for x
    x = 9,422,707,023.60/109,879.54
  6. Step 6: Final answer
    x = 85,754.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.