Home / 280,282.15-420,173.23-102,747.72

Finding the Fourth Proportional to 280,282.15, 420,173.23 and 102,747.72

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Solution

The fourth proportional to 280,282.15, 420,173.23 and 102,747.72 is: 154,029.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,282.15 : 420,173.23 = 102,747.72 : x
  2. Step 2: Convert to fraction form
    280,282.15/420,173.23 = 102,747.72/x
  3. Step 3: Cross multiply
    280,282.15x = 420,173.23 × 102,747.72
  4. Step 4: Simplify right side
    280,282.15x = 43,171,840,873.80
  5. Step 5: Solve for x
    x = 43,171,840,873.80/280,282.15
  6. Step 6: Final answer
    x = 154,029.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.