Home / 189,410.54-261,382.71-103,371.22

Finding the Fourth Proportional to 189,410.54, 261,382.71 and 103,371.22

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Solution

The fourth proportional to 189,410.54, 261,382.71 and 103,371.22 is: 142,650.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,410.54 : 261,382.71 = 103,371.22 : x
  2. Step 2: Convert to fraction form
    189,410.54/261,382.71 = 103,371.22/x
  3. Step 3: Cross multiply
    189,410.54x = 261,382.71 × 103,371.22
  4. Step 4: Simplify right side
    189,410.54x = 27,019,450,333.98
  5. Step 5: Solve for x
    x = 27,019,450,333.98/189,410.54
  6. Step 6: Final answer
    x = 142,650.20

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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.