Home / 89,974.20-134,874.90-69,972.60

Finding the Fourth Proportional to 89,974.20, 134,874.90 and 69,972.60

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Solution

The fourth proportional to 89,974.20, 134,874.90 and 69,972.60 is: 104,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,974.20 : 134,874.90 = 69,972.60 : x
  2. Step 2: Convert to fraction form
    89,974.20/134,874.90 = 69,972.60/x
  3. Step 3: Cross multiply
    89,974.20x = 134,874.90 × 69,972.60
  4. Step 4: Simplify right side
    89,974.20x = 9,437,547,427.74
  5. Step 5: Solve for x
    x = 9,437,547,427.74/89,974.20
  6. Step 6: Final answer
    x = 104,891.71

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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.