Home / 120,920.82-181,381.65-36,681.71

Finding the Fourth Proportional to 120,920.82, 181,381.65 and 36,681.71

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Solution

The fourth proportional to 120,920.82, 181,381.65 and 36,681.71 is: 55,022.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,920.82 : 181,381.65 = 36,681.71 : x
  2. Step 2: Convert to fraction form
    120,920.82/181,381.65 = 36,681.71/x
  3. Step 3: Cross multiply
    120,920.82x = 181,381.65 × 36,681.71
  4. Step 4: Simplify right side
    120,920.82x = 6,653,389,084.62
  5. Step 5: Solve for x
    x = 6,653,389,084.62/120,920.82
  6. Step 6: Final answer
    x = 55,022.69

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1.5x scale

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.