Home / 189,441.72-261,429.30-104,558.58

Finding the Fourth Proportional to 189,441.72, 261,429.30 and 104,558.58

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Solution

The fourth proportional to 189,441.72, 261,429.30 and 104,558.58 is: 144,290.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,441.72 : 261,429.30 = 104,558.58 : x
  2. Step 2: Convert to fraction form
    189,441.72/261,429.30 = 104,558.58/x
  3. Step 3: Cross multiply
    189,441.72x = 261,429.30 × 104,558.58
  4. Step 4: Simplify right side
    189,441.72x = 27,334,676,378.39
  5. Step 5: Solve for x
    x = 27,334,676,378.39/189,441.72
  6. Step 6: Final answer
    x = 144,290.69

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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.