Home / 115,345.38-159,187.74-70,012.92

Finding the Fourth Proportional to 115,345.38, 159,187.74 and 70,012.92

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Solution

The fourth proportional to 115,345.38, 159,187.74 and 70,012.92 is: 96,624.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,345.38 : 159,187.74 = 70,012.92 : x
  2. Step 2: Convert to fraction form
    115,345.38/159,187.74 = 70,012.92/x
  3. Step 3: Cross multiply
    115,345.38x = 159,187.74 × 70,012.92
  4. Step 4: Simplify right side
    115,345.38x = 11,145,198,505.60
  5. Step 5: Solve for x
    x = 11,145,198,505.60/115,345.38
  6. Step 6: Final answer
    x = 96,624.58

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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.