Home / 128,518.90-192,807.15-49,626.10

Finding the Fourth Proportional to 128,518.90, 192,807.15 and 49,626.10

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Solution

The fourth proportional to 128,518.90, 192,807.15 and 49,626.10 is: 74,450.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,518.90 : 192,807.15 = 49,626.10 : x
  2. Step 2: Convert to fraction form
    128,518.90/192,807.15 = 49,626.10/x
  3. Step 3: Cross multiply
    128,518.90x = 192,807.15 × 49,626.10
  4. Step 4: Simplify right side
    128,518.90x = 9,568,266,906.62
  5. Step 5: Solve for x
    x = 9,568,266,906.62/128,518.90
  6. Step 6: Final answer
    x = 74,450.27

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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.