Home / 193,156-266,556.24-112,639.36

Finding the Fourth Proportional to 193,156, 266,556.24 and 112,639.36

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Solution

The fourth proportional to 193,156, 266,556.24 and 112,639.36 is: 155,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,156 : 266,556.24 = 112,639.36 : x
  2. Step 2: Convert to fraction form
    193,156/266,556.24 = 112,639.36/x
  3. Step 3: Cross multiply
    193,156x = 266,556.24 × 112,639.36
  4. Step 4: Simplify right side
    193,156x = 30,024,724,277.61
  5. Step 5: Solve for x
    x = 30,024,724,277.61/193,156
  6. Step 6: Final answer
    x = 155,442.88

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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.