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Finding the Fourth Proportional to 189,120.66, 283,787.64 and 104,870.27

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Solution

The fourth proportional to 189,120.66, 283,787.64 and 104,870.27 is: 157,364.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,120.66 : 283,787.64 = 104,870.27 : x
  2. Step 2: Convert to fraction form
    189,120.66/283,787.64 = 104,870.27/x
  3. Step 3: Cross multiply
    189,120.66x = 283,787.64 × 104,870.27
  4. Step 4: Simplify right side
    189,120.66x = 29,760,886,429.46
  5. Step 5: Solve for x
    x = 29,760,886,429.46/189,120.66
  6. Step 6: Final answer
    x = 157,364.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.