Home / 115,205.58-158,992.97-64,234.80

Finding the Fourth Proportional to 115,205.58, 158,992.97 and 64,234.80

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Solution

The fourth proportional to 115,205.58, 158,992.97 and 64,234.80 is: 88,649.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,205.58 : 158,992.97 = 64,234.80 : x
  2. Step 2: Convert to fraction form
    115,205.58/158,992.97 = 64,234.80/x
  3. Step 3: Cross multiply
    115,205.58x = 158,992.97 × 64,234.80
  4. Step 4: Simplify right side
    115,205.58x = 10,212,881,308.18
  5. Step 5: Solve for x
    x = 10,212,881,308.18/115,205.58
  6. Step 6: Final answer
    x = 88,649.19

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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.