Home / 280,130.06-420,198.74-93,141.56

Finding the Fourth Proportional to 280,130.06, 420,198.74 and 93,141.56

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Solution

The fourth proportional to 280,130.06, 420,198.74 and 93,141.56 is: 139,713.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,130.06 : 420,198.74 = 93,141.56 : x
  2. Step 2: Convert to fraction form
    280,130.06/420,198.74 = 93,141.56/x
  3. Step 3: Cross multiply
    280,130.06x = 420,198.74 × 93,141.56
  4. Step 4: Simplify right side
    280,130.06x = 39,137,967,087.70
  5. Step 5: Solve for x
    x = 39,137,967,087.70/280,130.06
  6. Step 6: Final answer
    x = 139,713.56

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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.