Home / 131,512.16-181,497.84-80,524.64

Finding the Fourth Proportional to 131,512.16, 181,497.84 and 80,524.64

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Solution

The fourth proportional to 131,512.16, 181,497.84 and 80,524.64 is: 111,130.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,512.16 : 181,497.84 = 80,524.64 : x
  2. Step 2: Convert to fraction form
    131,512.16/181,497.84 = 80,524.64/x
  3. Step 3: Cross multiply
    131,512.16x = 181,497.84 × 80,524.64
  4. Step 4: Simplify right side
    131,512.16x = 14,615,048,226.78
  5. Step 5: Solve for x
    x = 14,615,048,226.78/131,512.16
  6. Step 6: Final answer
    x = 111,130.77

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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.