Home / 189,321.39-261,263.79-104,438.25

Finding the Fourth Proportional to 189,321.39, 261,263.79 and 104,438.25

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Solution

The fourth proportional to 189,321.39, 261,263.79 and 104,438.25 is: 144,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,321.39 : 261,263.79 = 104,438.25 : x
  2. Step 2: Convert to fraction form
    189,321.39/261,263.79 = 104,438.25/x
  3. Step 3: Cross multiply
    189,321.39x = 261,263.79 × 104,438.25
  4. Step 4: Simplify right side
    189,321.39x = 27,285,933,015.97
  5. Step 5: Solve for x
    x = 27,285,933,015.97/189,321.39
  6. Step 6: Final answer
    x = 144,124.93

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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.