Home / 189,427.84-261,444.32-112,951.87

Finding the Fourth Proportional to 189,427.84, 261,444.32 and 112,951.87

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Solution

The fourth proportional to 189,427.84, 261,444.32 and 112,951.87 is: 155,893.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,427.84 : 261,444.32 = 112,951.87 : x
  2. Step 2: Convert to fraction form
    189,427.84/261,444.32 = 112,951.87/x
  3. Step 3: Cross multiply
    189,427.84x = 261,444.32 × 112,951.87
  4. Step 4: Simplify right side
    189,427.84x = 29,530,624,280.12
  5. Step 5: Solve for x
    x = 29,530,624,280.12/189,427.84
  6. Step 6: Final answer
    x = 155,893.79

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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.