Home / 131,572.40-181,528.46-80,531.94

Finding the Fourth Proportional to 131,572.40, 181,528.46 and 80,531.94

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Solution

The fourth proportional to 131,572.40, 181,528.46 and 80,531.94 is: 111,108.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,572.40 : 181,528.46 = 80,531.94 : x
  2. Step 2: Convert to fraction form
    131,572.40/181,528.46 = 80,531.94/x
  3. Step 3: Cross multiply
    131,572.40x = 181,528.46 × 80,531.94
  4. Step 4: Simplify right side
    131,572.40x = 14,618,839,049.01
  5. Step 5: Solve for x
    x = 14,618,839,049.01/131,572.40
  6. Step 6: Final answer
    x = 111,108.71

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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.