Home / 118,123.52-177,153.68-80,677.22

Finding the Fourth Proportional to 118,123.52, 177,153.68 and 80,677.22

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Solution

The fourth proportional to 118,123.52, 177,153.68 and 80,677.22 is: 120,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,123.52 : 177,153.68 = 80,677.22 : x
  2. Step 2: Convert to fraction form
    118,123.52/177,153.68 = 80,677.22/x
  3. Step 3: Cross multiply
    118,123.52x = 177,153.68 × 80,677.22
  4. Step 4: Simplify right side
    118,123.52x = 14,292,265,731.09
  5. Step 5: Solve for x
    x = 14,292,265,731.09/118,123.52
  6. Step 6: Final answer
    x = 120,994.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.