Home / 120,920.32-181,380.90-36,681.21

Finding the Fourth Proportional to 120,920.32, 181,380.90 and 36,681.21

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Solution

The fourth proportional to 120,920.32, 181,380.90 and 36,681.21 is: 55,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.32 : 181,380.90 = 36,681.21 : x
  2. Step 2: Convert to fraction form
    120,920.32/181,380.90 = 36,681.21/x
  3. Step 3: Cross multiply
    120,920.32x = 181,380.90 × 36,681.21
  4. Step 4: Simplify right side
    120,920.32x = 6,653,270,882.89
  5. Step 5: Solve for x
    x = 6,653,270,882.89/120,920.32
  6. Step 6: Final answer
    x = 55,021.94

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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.