Home / 202,961.83-280,087.87-112,324.05

Finding the Fourth Proportional to 202,961.83, 280,087.87 and 112,324.05

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Solution

The fourth proportional to 202,961.83, 280,087.87 and 112,324.05 is: 155,007.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,961.83 : 280,087.87 = 112,324.05 : x
  2. Step 2: Convert to fraction form
    202,961.83/280,087.87 = 112,324.05/x
  3. Step 3: Cross multiply
    202,961.83x = 280,087.87 × 112,324.05
  4. Step 4: Simplify right side
    202,961.83x = 31,460,602,513.83
  5. Step 5: Solve for x
    x = 31,460,602,513.83/202,961.83
  6. Step 6: Final answer
    x = 155,007.48

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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.