Home / 203,470.08-280,783.68-112,826.40

Finding the Fourth Proportional to 203,470.08, 280,783.68 and 112,826.40

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Solution

The fourth proportional to 203,470.08, 280,783.68 and 112,826.40 is: 155,697.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,470.08 : 280,783.68 = 112,826.40 : x
  2. Step 2: Convert to fraction form
    203,470.08/280,783.68 = 112,826.40/x
  3. Step 3: Cross multiply
    203,470.08x = 280,783.68 × 112,826.40
  4. Step 4: Simplify right side
    203,470.08x = 31,679,811,793.15
  5. Step 5: Solve for x
    x = 31,679,811,793.15/203,470.08
  6. Step 6: Final answer
    x = 155,697.64

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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.