Home / 203,934.31-281,448.37-123,381.63

Finding the Fourth Proportional to 203,934.31, 281,448.37 and 123,381.63

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Solution

The fourth proportional to 203,934.31, 281,448.37 and 123,381.63 is: 170,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,934.31 : 281,448.37 = 123,381.63 : x
  2. Step 2: Convert to fraction form
    203,934.31/281,448.37 = 123,381.63/x
  3. Step 3: Cross multiply
    203,934.31x = 281,448.37 × 123,381.63
  4. Step 4: Simplify right side
    203,934.31x = 34,725,558,805.67
  5. Step 5: Solve for x
    x = 34,725,558,805.67/203,934.31
  6. Step 6: Final answer
    x = 170,278.16

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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.