Home / 115,353.39-159,198.64-70,020.95

Finding the Fourth Proportional to 115,353.39, 159,198.64 and 70,020.95

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Solution

The fourth proportional to 115,353.39, 159,198.64 and 70,020.95 is: 96,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,353.39 : 159,198.64 = 70,020.95 : x
  2. Step 2: Convert to fraction form
    115,353.39/159,198.64 = 70,020.95/x
  3. Step 3: Cross multiply
    115,353.39x = 159,198.64 × 70,020.95
  4. Step 4: Simplify right side
    115,353.39x = 11,147,240,234.45
  5. Step 5: Solve for x
    x = 11,147,240,234.45/115,353.39
  6. Step 6: Final answer
    x = 96,635.57

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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.