Home / 203,154.75-280,260.51-131,557.86

Finding the Fourth Proportional to 203,154.75, 280,260.51 and 131,557.86

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Solution

The fourth proportional to 203,154.75, 280,260.51 and 131,557.86 is: 181,489.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,154.75 : 280,260.51 = 131,557.86 : x
  2. Step 2: Convert to fraction form
    203,154.75/280,260.51 = 131,557.86/x
  3. Step 3: Cross multiply
    203,154.75x = 280,260.51 × 131,557.86
  4. Step 4: Simplify right side
    203,154.75x = 36,870,472,938.11
  5. Step 5: Solve for x
    x = 36,870,472,938.11/203,154.75
  6. Step 6: Final answer
    x = 181,489.59

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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.