Home / 151,067.40-208,474.43-82,157.51

Finding the Fourth Proportional to 151,067.40, 208,474.43 and 82,157.51

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Solution

The fourth proportional to 151,067.40, 208,474.43 and 82,157.51 is: 113,378.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,067.40 : 208,474.43 = 82,157.51 : x
  2. Step 2: Convert to fraction form
    151,067.40/208,474.43 = 82,157.51/x
  3. Step 3: Cross multiply
    151,067.40x = 208,474.43 × 82,157.51
  4. Step 4: Simplify right side
    151,067.40x = 17,127,739,698.40
  5. Step 5: Solve for x
    x = 17,127,739,698.40/151,067.40
  6. Step 6: Final answer
    x = 113,378.13

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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.