Home / 190,382.22-262,729-105,500.70

Finding the Fourth Proportional to 190,382.22, 262,729 and 105,500.70

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Solution

The fourth proportional to 190,382.22, 262,729 and 105,500.70 is: 145,591.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,382.22 : 262,729 = 105,500.70 : x
  2. Step 2: Convert to fraction form
    190,382.22/262,729 = 105,500.70/x
  3. Step 3: Cross multiply
    190,382.22x = 262,729 × 105,500.70
  4. Step 4: Simplify right side
    190,382.22x = 27,718,093,410.30
  5. Step 5: Solve for x
    x = 27,718,093,410.30/190,382.22
  6. Step 6: Final answer
    x = 145,591.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.