Home / 115,051.84-158,768.04-64,067.20

Finding the Fourth Proportional to 115,051.84, 158,768.04 and 64,067.20

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Solution

The fourth proportional to 115,051.84, 158,768.04 and 64,067.20 is: 88,410.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,051.84 : 158,768.04 = 64,067.20 : x
  2. Step 2: Convert to fraction form
    115,051.84/158,768.04 = 64,067.20/x
  3. Step 3: Cross multiply
    115,051.84x = 158,768.04 × 64,067.20
  4. Step 4: Simplify right side
    115,051.84x = 10,171,823,772.29
  5. Step 5: Solve for x
    x = 10,171,823,772.29/115,051.84
  6. Step 6: Final answer
    x = 88,410.79

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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.