Home / 146,635.48-219,945.93-85,879.90

Finding the Fourth Proportional to 146,635.48, 219,945.93 and 85,879.90

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Solution

The fourth proportional to 146,635.48, 219,945.93 and 85,879.90 is: 128,815.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,635.48 : 219,945.93 = 85,879.90 : x
  2. Step 2: Convert to fraction form
    146,635.48/219,945.93 = 85,879.90/x
  3. Step 3: Cross multiply
    146,635.48x = 219,945.93 × 85,879.90
  4. Step 4: Simplify right side
    146,635.48x = 18,888,934,473.81
  5. Step 5: Solve for x
    x = 18,888,934,473.81/146,635.48
  6. Step 6: Final answer
    x = 128,815.58

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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.