Home / 131,800.66-181,929.27-80,117.58

Finding the Fourth Proportional to 131,800.66, 181,929.27 and 80,117.58

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Solution

The fourth proportional to 131,800.66, 181,929.27 and 80,117.58 is: 110,589.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,800.66 : 181,929.27 = 80,117.58 : x
  2. Step 2: Convert to fraction form
    131,800.66/181,929.27 = 80,117.58/x
  3. Step 3: Cross multiply
    131,800.66x = 181,929.27 × 80,117.58
  4. Step 4: Simplify right side
    131,800.66x = 14,575,732,843.57
  5. Step 5: Solve for x
    x = 14,575,732,843.57/131,800.66
  6. Step 6: Final answer
    x = 110,589.22

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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.