Home / 189,205.68-261,105.60-104,325.76

Finding the Fourth Proportional to 189,205.68, 261,105.60 and 104,325.76

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Solution

The fourth proportional to 189,205.68, 261,105.60 and 104,325.76 is: 143,970.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,205.68 : 261,105.60 = 104,325.76 : x
  2. Step 2: Convert to fraction form
    189,205.68/261,105.60 = 104,325.76/x
  3. Step 3: Cross multiply
    189,205.68x = 261,105.60 × 104,325.76
  4. Step 4: Simplify right side
    189,205.68x = 27,240,040,160.26
  5. Step 5: Solve for x
    x = 27,240,040,160.26/189,205.68
  6. Step 6: Final answer
    x = 143,970.52

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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.