Home / 155,177.37-232,868.13-85,105.89

Finding the Fourth Proportional to 155,177.37, 232,868.13 and 85,105.89

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Solution

The fourth proportional to 155,177.37, 232,868.13 and 85,105.89 is: 127,714.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,177.37 : 232,868.13 = 85,105.89 : x
  2. Step 2: Convert to fraction form
    155,177.37/232,868.13 = 85,105.89/x
  3. Step 3: Cross multiply
    155,177.37x = 232,868.13 × 85,105.89
  4. Step 4: Simplify right side
    155,177.37x = 19,818,449,456.29
  5. Step 5: Solve for x
    x = 19,818,449,456.29/155,177.37
  6. Step 6: Final answer
    x = 127,714.82

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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.