Home / 103,639.46-154,650.85-92,469.29

Finding the Fourth Proportional to 103,639.46, 154,650.85 and 92,469.29

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Solution

The fourth proportional to 103,639.46, 154,650.85 and 92,469.29 is: 137,982.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,639.46 : 154,650.85 = 92,469.29 : x
  2. Step 2: Convert to fraction form
    103,639.46/154,650.85 = 92,469.29/x
  3. Step 3: Cross multiply
    103,639.46x = 154,650.85 × 92,469.29
  4. Step 4: Simplify right side
    103,639.46x = 14,300,454,297.40
  5. Step 5: Solve for x
    x = 14,300,454,297.40/103,639.46
  6. Step 6: Final answer
    x = 137,982.72

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.