Home / 189,702.28-261,789.06-104,818.60

Finding the Fourth Proportional to 189,702.28, 261,789.06 and 104,818.60

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Solution

The fourth proportional to 189,702.28, 261,789.06 and 104,818.60 is: 144,649.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,702.28 : 261,789.06 = 104,818.60 : x
  2. Step 2: Convert to fraction form
    189,702.28/261,789.06 = 104,818.60/x
  3. Step 3: Cross multiply
    189,702.28x = 261,789.06 × 104,818.60
  4. Step 4: Simplify right side
    189,702.28x = 27,440,362,764.52
  5. Step 5: Solve for x
    x = 27,440,362,764.52/189,702.28
  6. Step 6: Final answer
    x = 144,649.62

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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.