Home / 175,409.82-242,176.23-121,676.04

Finding the Fourth Proportional to 175,409.82, 242,176.23 and 121,676.04

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Solution

The fourth proportional to 175,409.82, 242,176.23 and 121,676.04 is: 167,989.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,409.82 : 242,176.23 = 121,676.04 : x
  2. Step 2: Convert to fraction form
    175,409.82/242,176.23 = 121,676.04/x
  3. Step 3: Cross multiply
    175,409.82x = 242,176.23 × 121,676.04
  4. Step 4: Simplify right side
    175,409.82x = 29,467,044,648.53
  5. Step 5: Solve for x
    x = 29,467,044,648.53/175,409.82
  6. Step 6: Final answer
    x = 167,989.71

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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.