Home / 99,605.08-149,355.78-47,000.44

Finding the Fourth Proportional to 99,605.08, 149,355.78 and 47,000.44

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Solution

The fourth proportional to 99,605.08, 149,355.78 and 47,000.44 is: 70,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,605.08 : 149,355.78 = 47,000.44 : x
  2. Step 2: Convert to fraction form
    99,605.08/149,355.78 = 47,000.44/x
  3. Step 3: Cross multiply
    99,605.08x = 149,355.78 × 47,000.44
  4. Step 4: Simplify right side
    99,605.08x = 7,019,787,376.54
  5. Step 5: Solve for x
    x = 7,019,787,376.54/99,605.08
  6. Step 6: Final answer
    x = 70,476.20

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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.