Home / 99,453.15-149,015.70-82,722.60

Finding the Fourth Proportional to 99,453.15, 149,015.70 and 82,722.60

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Solution

The fourth proportional to 99,453.15, 149,015.70 and 82,722.60 is: 123,947.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,453.15 : 149,015.70 = 82,722.60 : x
  2. Step 2: Convert to fraction form
    99,453.15/149,015.70 = 82,722.60/x
  3. Step 3: Cross multiply
    99,453.15x = 149,015.70 × 82,722.60
  4. Step 4: Simplify right side
    99,453.15x = 12,326,966,144.82
  5. Step 5: Solve for x
    x = 12,326,966,144.82/99,453.15
  6. Step 6: Final answer
    x = 123,947.47

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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.