Home / 147,046.40-220,660.32-68,145.92

Finding the Fourth Proportional to 147,046.40, 220,660.32 and 68,145.92

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Solution

The fourth proportional to 147,046.40, 220,660.32 and 68,145.92 is: 102,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,046.40 : 220,660.32 = 68,145.92 : x
  2. Step 2: Convert to fraction form
    147,046.40/220,660.32 = 68,145.92/x
  3. Step 3: Cross multiply
    147,046.40x = 220,660.32 × 68,145.92
  4. Step 4: Simplify right side
    147,046.40x = 15,037,100,513.89
  5. Step 5: Solve for x
    x = 15,037,100,513.89/147,046.40
  6. Step 6: Final answer
    x = 102,260.92

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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.