Home / 187,170.35-280,784.68-112,272.89

Finding the Fourth Proportional to 187,170.35, 280,784.68 and 112,272.89

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Solution

The fourth proportional to 187,170.35, 280,784.68 and 112,272.89 is: 168,426.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,170.35 : 280,784.68 = 112,272.89 : x
  2. Step 2: Convert to fraction form
    187,170.35/280,784.68 = 112,272.89/x
  3. Step 3: Cross multiply
    187,170.35x = 280,784.68 × 112,272.89
  4. Step 4: Simplify right side
    187,170.35x = 31,524,505,806.72
  5. Step 5: Solve for x
    x = 31,524,505,806.72/187,170.35
  6. Step 6: Final answer
    x = 168,426.82

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1.5x scale

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.