Home / 187,102.35-280,598.85-67,145.40

Finding the Fourth Proportional to 187,102.35, 280,598.85 and 67,145.40

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Solution

The fourth proportional to 187,102.35, 280,598.85 and 67,145.40 is: 100,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,102.35 : 280,598.85 = 67,145.40 : x
  2. Step 2: Convert to fraction form
    187,102.35/280,598.85 = 67,145.40/x
  3. Step 3: Cross multiply
    187,102.35x = 280,598.85 × 67,145.40
  4. Step 4: Simplify right side
    187,102.35x = 18,840,922,022.79
  5. Step 5: Solve for x
    x = 18,840,922,022.79/187,102.35
  6. Step 6: Final answer
    x = 100,698.48

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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.