Home / 131,511.91-181,497.50-80,524.39

Finding the Fourth Proportional to 131,511.91, 181,497.50 and 80,524.39

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Solution

The fourth proportional to 131,511.91, 181,497.50 and 80,524.39 is: 111,130.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,511.91 : 181,497.50 = 80,524.39 : x
  2. Step 2: Convert to fraction form
    131,511.91/181,497.50 = 80,524.39/x
  3. Step 3: Cross multiply
    131,511.91x = 181,497.50 × 80,524.39
  4. Step 4: Simplify right side
    131,511.91x = 14,614,975,071.40
  5. Step 5: Solve for x
    x = 14,614,975,071.40/131,511.91
  6. Step 6: Final answer
    x = 111,130.43

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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.