Home / 100,240.06-149,944.56-76,366.98

Finding the Fourth Proportional to 100,240.06, 149,944.56 and 76,366.98

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Solution

The fourth proportional to 100,240.06, 149,944.56 and 76,366.98 is: 114,233.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,240.06 : 149,944.56 = 76,366.98 : x
  2. Step 2: Convert to fraction form
    100,240.06/149,944.56 = 76,366.98/x
  3. Step 3: Cross multiply
    100,240.06x = 149,944.56 × 76,366.98
  4. Step 4: Simplify right side
    100,240.06x = 11,450,813,214.63
  5. Step 5: Solve for x
    x = 11,450,813,214.63/100,240.06
  6. Step 6: Final answer
    x = 114,233.90

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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.