Home / 203,402.07-280,711.63-112,786.46

Finding the Fourth Proportional to 203,402.07, 280,711.63 and 112,786.46

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Solution

The fourth proportional to 203,402.07, 280,711.63 and 112,786.46 is: 155,654.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,402.07 : 280,711.63 = 112,786.46 : x
  2. Step 2: Convert to fraction form
    203,402.07/280,711.63 = 112,786.46/x
  3. Step 3: Cross multiply
    203,402.07x = 280,711.63 × 112,786.46
  4. Step 4: Simplify right side
    203,402.07x = 31,660,470,184.20
  5. Step 5: Solve for x
    x = 31,660,470,184.20/203,402.07
  6. Step 6: Final answer
    x = 155,654.61

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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.