Home / 151,319.91-208,466.28-105,300.44

Finding the Fourth Proportional to 151,319.91, 208,466.28 and 105,300.44

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Solution

The fourth proportional to 151,319.91, 208,466.28 and 105,300.44 is: 145,067.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,319.91 : 208,466.28 = 105,300.44 : x
  2. Step 2: Convert to fraction form
    151,319.91/208,466.28 = 105,300.44/x
  3. Step 3: Cross multiply
    151,319.91x = 208,466.28 × 105,300.44
  4. Step 4: Simplify right side
    151,319.91x = 21,951,591,009.16
  5. Step 5: Solve for x
    x = 21,951,591,009.16/151,319.91
  6. Step 6: Final answer
    x = 145,067.43

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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.