Home / 280,132.82-420,202.88-93,144.32

Finding the Fourth Proportional to 280,132.82, 420,202.88 and 93,144.32

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Solution

The fourth proportional to 280,132.82, 420,202.88 and 93,144.32 is: 139,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,132.82 : 420,202.88 = 93,144.32 : x
  2. Step 2: Convert to fraction form
    280,132.82/420,202.88 = 93,144.32/x
  3. Step 3: Cross multiply
    280,132.82x = 420,202.88 × 93,144.32
  4. Step 4: Simplify right side
    280,132.82x = 39,139,508,952.91
  5. Step 5: Solve for x
    x = 39,139,508,952.91/280,132.82
  6. Step 6: Final answer
    x = 139,717.69

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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.