Home / 131,356.71-181,202.21-80,394.14

Finding the Fourth Proportional to 131,356.71, 181,202.21 and 80,394.14

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Solution

The fourth proportional to 131,356.71, 181,202.21 and 80,394.14 is: 110,901.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,356.71 : 181,202.21 = 80,394.14 : x
  2. Step 2: Convert to fraction form
    131,356.71/181,202.21 = 80,394.14/x
  3. Step 3: Cross multiply
    131,356.71x = 181,202.21 × 80,394.14
  4. Step 4: Simplify right side
    131,356.71x = 14,567,595,839.05
  5. Step 5: Solve for x
    x = 14,567,595,839.05/131,356.71
  6. Step 6: Final answer
    x = 110,901.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.