Home / 120,780.54-181,112.58-50,641.02

Finding the Fourth Proportional to 120,780.54, 181,112.58 and 50,641.02

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Solution

The fourth proportional to 120,780.54, 181,112.58 and 50,641.02 is: 75,937.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,780.54 : 181,112.58 = 50,641.02 : x
  2. Step 2: Convert to fraction form
    120,780.54/181,112.58 = 50,641.02/x
  3. Step 3: Cross multiply
    120,780.54x = 181,112.58 × 50,641.02
  4. Step 4: Simplify right side
    120,780.54x = 9,171,725,786.03
  5. Step 5: Solve for x
    x = 9,171,725,786.03/120,780.54
  6. Step 6: Final answer
    x = 75,937.12

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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.