Home / 193,171.55-266,567.47-107,123.78

Finding the Fourth Proportional to 193,171.55, 266,567.47 and 107,123.78

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Solution

The fourth proportional to 193,171.55, 266,567.47 and 107,123.78 is: 147,825.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,171.55 : 266,567.47 = 107,123.78 : x
  2. Step 2: Convert to fraction form
    193,171.55/266,567.47 = 107,123.78/x
  3. Step 3: Cross multiply
    193,171.55x = 266,567.47 × 107,123.78
  4. Step 4: Simplify right side
    193,171.55x = 28,555,715,410.05
  5. Step 5: Solve for x
    x = 28,555,715,410.05/193,171.55
  6. Step 6: Final answer
    x = 147,825.68

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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.