Home / 189,429.12-261,408.72-104,544.48

Finding the Fourth Proportional to 189,429.12, 261,408.72 and 104,544.48

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Solution

The fourth proportional to 189,429.12, 261,408.72 and 104,544.48 is: 144,269.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,429.12 : 261,408.72 = 104,544.48 : x
  2. Step 2: Convert to fraction form
    189,429.12/261,408.72 = 104,544.48/x
  3. Step 3: Cross multiply
    189,429.12x = 261,408.72 × 104,544.48
  4. Step 4: Simplify right side
    189,429.12x = 27,328,838,699.87
  5. Step 5: Solve for x
    x = 27,328,838,699.87/189,429.12
  6. Step 6: Final answer
    x = 144,269.47

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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.