Home / 120,720.91-181,020.61-41,813.95

Finding the Fourth Proportional to 120,720.91, 181,020.61 and 41,813.95

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Solution

The fourth proportional to 120,720.91, 181,020.61 and 41,813.95 is: 62,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,720.91 : 181,020.61 = 41,813.95 : x
  2. Step 2: Convert to fraction form
    120,720.91/181,020.61 = 41,813.95/x
  3. Step 3: Cross multiply
    120,720.91x = 181,020.61 × 41,813.95
  4. Step 4: Simplify right side
    120,720.91x = 7,569,186,735.51
  5. Step 5: Solve for x
    x = 7,569,186,735.51/120,720.91
  6. Step 6: Final answer
    x = 62,699.88

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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.