Home / 203,043.60-280,196.07-112,399.50

Finding the Fourth Proportional to 203,043.60, 280,196.07 and 112,399.50

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Solution

The fourth proportional to 203,043.60, 280,196.07 and 112,399.50 is: 155,109.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,043.60 : 280,196.07 = 112,399.50 : x
  2. Step 2: Convert to fraction form
    203,043.60/280,196.07 = 112,399.50/x
  3. Step 3: Cross multiply
    203,043.60x = 280,196.07 × 112,399.50
  4. Step 4: Simplify right side
    203,043.60x = 31,493,898,169.97
  5. Step 5: Solve for x
    x = 31,493,898,169.97/203,043.60
  6. Step 6: Final answer
    x = 155,109.04

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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.