Home / 280,114.20-420,171.30-69,752.14

Finding the Fourth Proportional to 280,114.20, 420,171.30 and 69,752.14

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Solution

The fourth proportional to 280,114.20, 420,171.30 and 69,752.14 is: 104,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,114.20 : 420,171.30 = 69,752.14 : x
  2. Step 2: Convert to fraction form
    280,114.20/420,171.30 = 69,752.14/x
  3. Step 3: Cross multiply
    280,114.20x = 420,171.30 × 69,752.14
  4. Step 4: Simplify right side
    280,114.20x = 29,307,846,291.15
  5. Step 5: Solve for x
    x = 29,307,846,291.15/280,114.20
  6. Step 6: Final answer
    x = 104,628.21

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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.