Home / 203,084.96-280,252.85-112,435.61

Finding the Fourth Proportional to 203,084.96, 280,252.85 and 112,435.61

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Solution

The fourth proportional to 203,084.96, 280,252.85 and 112,435.61 is: 155,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,084.96 : 280,252.85 = 112,435.61 : x
  2. Step 2: Convert to fraction form
    203,084.96/280,252.85 = 112,435.61/x
  3. Step 3: Cross multiply
    203,084.96x = 280,252.85 × 112,435.61
  4. Step 4: Simplify right side
    203,084.96x = 31,510,398,180.55
  5. Step 5: Solve for x
    x = 31,510,398,180.55/203,084.96
  6. Step 6: Final answer
    x = 155,158.70

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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.