Home / 232,504.85-320,845.75-129,145.74

Finding the Fourth Proportional to 232,504.85, 320,845.75 and 129,145.74

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Solution

The fourth proportional to 232,504.85, 320,845.75 and 129,145.74 is: 178,215.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,504.85 : 320,845.75 = 129,145.74 : x
  2. Step 2: Convert to fraction form
    232,504.85/320,845.75 = 129,145.74/x
  3. Step 3: Cross multiply
    232,504.85x = 320,845.75 × 129,145.74
  4. Step 4: Simplify right side
    232,504.85x = 41,435,861,809.61
  5. Step 5: Solve for x
    x = 41,435,861,809.61/232,504.85
  6. Step 6: Final answer
    x = 178,215.04

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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.