Home / 111,729.73-154,190.07-60,745.89

Finding the Fourth Proportional to 111,729.73, 154,190.07 and 60,745.89

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Solution

The fourth proportional to 111,729.73, 154,190.07 and 60,745.89 is: 83,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,729.73 : 154,190.07 = 60,745.89 : x
  2. Step 2: Convert to fraction form
    111,729.73/154,190.07 = 60,745.89/x
  3. Step 3: Cross multiply
    111,729.73x = 154,190.07 × 60,745.89
  4. Step 4: Simplify right side
    111,729.73x = 9,366,413,031.31
  5. Step 5: Solve for x
    x = 9,366,413,031.31/111,729.73
  6. Step 6: Final answer
    x = 83,830.98

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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.