Home / 113,863.20-170,391.60-99,232.80

Finding the Fourth Proportional to 113,863.20, 170,391.60 and 99,232.80

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Solution

The fourth proportional to 113,863.20, 170,391.60 and 99,232.80 is: 148,497.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,863.20 : 170,391.60 = 99,232.80 : x
  2. Step 2: Convert to fraction form
    113,863.20/170,391.60 = 99,232.80/x
  3. Step 3: Cross multiply
    113,863.20x = 170,391.60 × 99,232.80
  4. Step 4: Simplify right side
    113,863.20x = 16,908,435,564.48
  5. Step 5: Solve for x
    x = 16,908,435,564.48/113,863.20
  6. Step 6: Final answer
    x = 148,497.81

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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.