Home / 120,871.29-181,306.71-41,986.20

Finding the Fourth Proportional to 120,871.29, 181,306.71 and 41,986.20

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Solution

The fourth proportional to 120,871.29, 181,306.71 and 41,986.20 is: 62,979.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,871.29 : 181,306.71 = 41,986.20 : x
  2. Step 2: Convert to fraction form
    120,871.29/181,306.71 = 41,986.20/x
  3. Step 3: Cross multiply
    120,871.29x = 181,306.71 × 41,986.20
  4. Step 4: Simplify right side
    120,871.29x = 7,612,379,787.40
  5. Step 5: Solve for x
    x = 7,612,379,787.40/120,871.29
  6. Step 6: Final answer
    x = 62,979.22

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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.