Home / 138,087.92-207,143.74-59,183.40

Finding the Fourth Proportional to 138,087.92, 207,143.74 and 59,183.40

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Solution

The fourth proportional to 138,087.92, 207,143.74 and 59,183.40 is: 88,780.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,087.92 : 207,143.74 = 59,183.40 : x
  2. Step 2: Convert to fraction form
    138,087.92/207,143.74 = 59,183.40/x
  3. Step 3: Cross multiply
    138,087.92x = 207,143.74 × 59,183.40
  4. Step 4: Simplify right side
    138,087.92x = 12,259,470,821.92
  5. Step 5: Solve for x
    x = 12,259,470,821.92/138,087.92
  6. Step 6: Final answer
    x = 88,780.18

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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.