Home / 115,424.06-159,351.44-87,984.71

Finding the Fourth Proportional to 115,424.06, 159,351.44 and 87,984.71

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Solution

The fourth proportional to 115,424.06, 159,351.44 and 87,984.71 is: 121,469.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,424.06 : 159,351.44 = 87,984.71 : x
  2. Step 2: Convert to fraction form
    115,424.06/159,351.44 = 87,984.71/x
  3. Step 3: Cross multiply
    115,424.06x = 159,351.44 × 87,984.71
  4. Step 4: Simplify right side
    115,424.06x = 14,020,489,597.37
  5. Step 5: Solve for x
    x = 14,020,489,597.37/115,424.06
  6. Step 6: Final answer
    x = 121,469.39

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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.