Home / 202,917.89-280,034.96-112,272.39

Finding the Fourth Proportional to 202,917.89, 280,034.96 and 112,272.39

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Solution

The fourth proportional to 202,917.89, 280,034.96 and 112,272.39 is: 154,940.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,917.89 : 280,034.96 = 112,272.39 : x
  2. Step 2: Convert to fraction form
    202,917.89/280,034.96 = 112,272.39/x
  3. Step 3: Cross multiply
    202,917.89x = 280,034.96 × 112,272.39
  4. Step 4: Simplify right side
    202,917.89x = 31,440,193,681.39
  5. Step 5: Solve for x
    x = 31,440,193,681.39/202,917.89
  6. Step 6: Final answer
    x = 154,940.47

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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.