Home / 121,013.25-181,529.46-36,780.72

Finding the Fourth Proportional to 121,013.25, 181,529.46 and 36,780.72

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Solution

The fourth proportional to 121,013.25, 181,529.46 and 36,780.72 is: 55,173.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,013.25 : 181,529.46 = 36,780.72 : x
  2. Step 2: Convert to fraction form
    121,013.25/181,529.46 = 36,780.72/x
  3. Step 3: Cross multiply
    121,013.25x = 181,529.46 × 36,780.72
  4. Step 4: Simplify right side
    121,013.25x = 6,676,784,240.01
  5. Step 5: Solve for x
    x = 6,676,784,240.01/121,013.25
  6. Step 6: Final answer
    x = 55,173.99

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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.