Home / 189,528.92-261,551.86-104,645.78

Finding the Fourth Proportional to 189,528.92, 261,551.86 and 104,645.78

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Solution

The fourth proportional to 189,528.92, 261,551.86 and 104,645.78 is: 144,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,528.92 : 261,551.86 = 104,645.78 : x
  2. Step 2: Convert to fraction form
    189,528.92/261,551.86 = 104,645.78/x
  3. Step 3: Cross multiply
    189,528.92x = 261,551.86 × 104,645.78
  4. Step 4: Simplify right side
    189,528.92x = 27,370,298,400.15
  5. Step 5: Solve for x
    x = 27,370,298,400.15/189,528.92
  6. Step 6: Final answer
    x = 144,412.25

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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.