Home / 120,780.24-181,125-41,875.44

Finding the Fourth Proportional to 120,780.24, 181,125 and 41,875.44

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Solution

The fourth proportional to 120,780.24, 181,125 and 41,875.44 is: 62,797.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.24 : 181,125 = 41,875.44 : x
  2. Step 2: Convert to fraction form
    120,780.24/181,125 = 41,875.44/x
  3. Step 3: Cross multiply
    120,780.24x = 181,125 × 41,875.44
  4. Step 4: Simplify right side
    120,780.24x = 7,584,689,070
  5. Step 5: Solve for x
    x = 7,584,689,070/120,780.24
  6. Step 6: Final answer
    x = 62,797.43

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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.