Home / 203,560.21-280,917.59-112,913.22

Finding the Fourth Proportional to 203,560.21, 280,917.59 and 112,913.22

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Solution

The fourth proportional to 203,560.21, 280,917.59 and 112,913.22 is: 155,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,560.21 : 280,917.59 = 112,913.22 : x
  2. Step 2: Convert to fraction form
    203,560.21/280,917.59 = 112,913.22/x
  3. Step 3: Cross multiply
    203,560.21x = 280,917.59 × 112,913.22
  4. Step 4: Simplify right side
    203,560.21x = 31,719,309,641.54
  5. Step 5: Solve for x
    x = 31,719,309,641.54/203,560.21
  6. Step 6: Final answer
    x = 155,822.74

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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.