Home / 131,380.56-181,294.83-74,016.75

Finding the Fourth Proportional to 131,380.56, 181,294.83 and 74,016.75

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Solution

The fourth proportional to 131,380.56, 181,294.83 and 74,016.75 is: 102,137.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,380.56 : 181,294.83 = 74,016.75 : x
  2. Step 2: Convert to fraction form
    131,380.56/181,294.83 = 74,016.75/x
  3. Step 3: Cross multiply
    131,380.56x = 181,294.83 × 74,016.75
  4. Step 4: Simplify right side
    131,380.56x = 13,418,854,108.40
  5. Step 5: Solve for x
    x = 13,418,854,108.40/131,380.56
  6. Step 6: Final answer
    x = 102,137.29

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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.