Home / 176,610.86-243,715.56-100,135.10

Finding the Fourth Proportional to 176,610.86, 243,715.56 and 100,135.10

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Solution

The fourth proportional to 176,610.86, 243,715.56 and 100,135.10 is: 138,182.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,610.86 : 243,715.56 = 100,135.10 : x
  2. Step 2: Convert to fraction form
    176,610.86/243,715.56 = 100,135.10/x
  3. Step 3: Cross multiply
    176,610.86x = 243,715.56 × 100,135.10
  4. Step 4: Simplify right side
    176,610.86x = 24,404,481,972.16
  5. Step 5: Solve for x
    x = 24,404,481,972.16/176,610.86
  6. Step 6: Final answer
    x = 138,182.23

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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.