Home / 192,815.76-266,017.32-125,631.12

Finding the Fourth Proportional to 192,815.76, 266,017.32 and 125,631.12

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Solution

The fourth proportional to 192,815.76, 266,017.32 and 125,631.12 is: 173,326.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,815.76 : 266,017.32 = 125,631.12 : x
  2. Step 2: Convert to fraction form
    192,815.76/266,017.32 = 125,631.12/x
  3. Step 3: Cross multiply
    192,815.76x = 266,017.32 × 125,631.12
  4. Step 4: Simplify right side
    192,815.76x = 33,420,053,851.00
  5. Step 5: Solve for x
    x = 33,420,053,851.00/192,815.76
  6. Step 6: Final answer
    x = 173,326.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.