Home / 120,591.56-180,880.03-54,013.82

Finding the Fourth Proportional to 120,591.56, 180,880.03 and 54,013.82

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Solution

The fourth proportional to 120,591.56, 180,880.03 and 54,013.82 is: 81,017.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,591.56 : 180,880.03 = 54,013.82 : x
  2. Step 2: Convert to fraction form
    120,591.56/180,880.03 = 54,013.82/x
  3. Step 3: Cross multiply
    120,591.56x = 180,880.03 × 54,013.82
  4. Step 4: Simplify right side
    120,591.56x = 9,770,020,342.58
  5. Step 5: Solve for x
    x = 9,770,020,342.58/120,591.56
  6. Step 6: Final answer
    x = 81,017.45

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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.