Home / 176,277.76-243,272.64-100,839.04

Finding the Fourth Proportional to 176,277.76, 243,272.64 and 100,839.04

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Solution

The fourth proportional to 176,277.76, 243,272.64 and 100,839.04 is: 139,163.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,277.76 : 243,272.64 = 100,839.04 : x
  2. Step 2: Convert to fraction form
    176,277.76/243,272.64 = 100,839.04/x
  3. Step 3: Cross multiply
    176,277.76x = 243,272.64 × 100,839.04
  4. Step 4: Simplify right side
    176,277.76x = 24,531,379,475.87
  5. Step 5: Solve for x
    x = 24,531,379,475.87/176,277.76
  6. Step 6: Final answer
    x = 139,163.21

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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.