Home / 151,100.46-208,533.92-86,578.25

Finding the Fourth Proportional to 151,100.46, 208,533.92 and 86,578.25

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Solution

The fourth proportional to 151,100.46, 208,533.92 and 86,578.25 is: 119,486.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,100.46 : 208,533.92 = 86,578.25 : x
  2. Step 2: Convert to fraction form
    151,100.46/208,533.92 = 86,578.25/x
  3. Step 3: Cross multiply
    151,100.46x = 208,533.92 × 86,578.25
  4. Step 4: Simplify right side
    151,100.46x = 18,054,500,383.68
  5. Step 5: Solve for x
    x = 18,054,500,383.68/151,100.46
  6. Step 6: Final answer
    x = 119,486.73

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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.