Home / 131,511.66-181,497.15-80,524.14

Finding the Fourth Proportional to 131,511.66, 181,497.15 and 80,524.14

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Solution

The fourth proportional to 131,511.66, 181,497.15 and 80,524.14 is: 111,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,511.66 : 181,497.15 = 80,524.14 : x
  2. Step 2: Convert to fraction form
    131,511.66/181,497.15 = 80,524.14/x
  3. Step 3: Cross multiply
    131,511.66x = 181,497.15 × 80,524.14
  4. Step 4: Simplify right side
    131,511.66x = 14,614,901,916.20
  5. Step 5: Solve for x
    x = 14,614,901,916.20/131,511.66
  6. Step 6: Final answer
    x = 111,130.08

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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.