Home / 203,521.14-280,876.41-112,906.28

Finding the Fourth Proportional to 203,521.14, 280,876.41 and 112,906.28

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Solution

The fourth proportional to 203,521.14, 280,876.41 and 112,906.28 is: 155,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,521.14 : 280,876.41 = 112,906.28 : x
  2. Step 2: Convert to fraction form
    203,521.14/280,876.41 = 112,906.28/x
  3. Step 3: Cross multiply
    203,521.14x = 280,876.41 × 112,906.28
  4. Step 4: Simplify right side
    203,521.14x = 31,712,711,295.05
  5. Step 5: Solve for x
    x = 31,712,711,295.05/203,521.14
  6. Step 6: Final answer
    x = 155,820.23

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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.