Home / 103,665.15-155,497.73-51,177.15

Finding the Fourth Proportional to 103,665.15, 155,497.73 and 51,177.15

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Solution

The fourth proportional to 103,665.15, 155,497.73 and 51,177.15 is: 76,765.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,665.15 : 155,497.73 = 51,177.15 : x
  2. Step 2: Convert to fraction form
    103,665.15/155,497.73 = 51,177.15/x
  3. Step 3: Cross multiply
    103,665.15x = 155,497.73 × 51,177.15
  4. Step 4: Simplify right side
    103,665.15x = 7,957,930,396.98
  5. Step 5: Solve for x
    x = 7,957,930,396.98/103,665.15
  6. Step 6: Final answer
    x = 76,765.73

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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.