Home / 115,067.12-158,789.36-64,079.84

Finding the Fourth Proportional to 115,067.12, 158,789.36 and 64,079.84

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Solution

The fourth proportional to 115,067.12, 158,789.36 and 64,079.84 is: 88,428.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,067.12 : 158,789.36 = 64,079.84 : x
  2. Step 2: Convert to fraction form
    115,067.12/158,789.36 = 64,079.84/x
  3. Step 3: Cross multiply
    115,067.12x = 158,789.36 × 64,079.84
  4. Step 4: Simplify right side
    115,067.12x = 10,175,196,782.50
  5. Step 5: Solve for x
    x = 10,175,196,782.50/115,067.12
  6. Step 6: Final answer
    x = 88,428.36

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1.5x scale

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.