Home / 203,026.25-280,178.70-112,390.59

Finding the Fourth Proportional to 203,026.25, 280,178.70 and 112,390.59

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Solution

The fourth proportional to 203,026.25, 280,178.70 and 112,390.59 is: 155,100.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,026.25 : 280,178.70 = 112,390.59 : x
  2. Step 2: Convert to fraction form
    203,026.25/280,178.70 = 112,390.59/x
  3. Step 3: Cross multiply
    203,026.25x = 280,178.70 × 112,390.59
  4. Step 4: Simplify right side
    203,026.25x = 31,489,448,451.63
  5. Step 5: Solve for x
    x = 31,489,448,451.63/203,026.25
  6. Step 6: Final answer
    x = 155,100.38

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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.