Home / 187,112.42-280,479.47-80,565.86

Finding the Fourth Proportional to 187,112.42, 280,479.47 and 80,565.86

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Solution

The fourth proportional to 187,112.42, 280,479.47 and 80,565.86 is: 120,767.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,112.42 : 280,479.47 = 80,565.86 : x
  2. Step 2: Convert to fraction form
    187,112.42/280,479.47 = 80,565.86/x
  3. Step 3: Cross multiply
    187,112.42x = 280,479.47 × 80,565.86
  4. Step 4: Simplify right side
    187,112.42x = 22,597,069,712.89
  5. Step 5: Solve for x
    x = 22,597,069,712.89/187,112.42
  6. Step 6: Final answer
    x = 120,767.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.