Home / 280,131.06-420,200.24-93,142.56

Finding the Fourth Proportional to 280,131.06, 420,200.24 and 93,142.56

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Solution

The fourth proportional to 280,131.06, 420,200.24 and 93,142.56 is: 139,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,131.06 : 420,200.24 = 93,142.56 : x
  2. Step 2: Convert to fraction form
    280,131.06/420,200.24 = 93,142.56/x
  3. Step 3: Cross multiply
    280,131.06x = 420,200.24 × 93,142.56
  4. Step 4: Simplify right side
    280,131.06x = 39,138,526,066.21
  5. Step 5: Solve for x
    x = 39,138,526,066.21/280,131.06
  6. Step 6: Final answer
    x = 139,715.05

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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.