Home / 121,777.20-182,694.60-38,671.20

Finding the Fourth Proportional to 121,777.20, 182,694.60 and 38,671.20

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Solution

The fourth proportional to 121,777.20, 182,694.60 and 38,671.20 is: 58,015.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,777.20 : 182,694.60 = 38,671.20 : x
  2. Step 2: Convert to fraction form
    121,777.20/182,694.60 = 38,671.20/x
  3. Step 3: Cross multiply
    121,777.20x = 182,694.60 × 38,671.20
  4. Step 4: Simplify right side
    121,777.20x = 7,065,019,415.52
  5. Step 5: Solve for x
    x = 7,065,019,415.52/121,777.20
  6. Step 6: Final answer
    x = 58,015.95

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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.