Home / 138,917.77-208,352.39-39,054.25

Finding the Fourth Proportional to 138,917.77, 208,352.39 and 39,054.25

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Solution

The fourth proportional to 138,917.77, 208,352.39 and 39,054.25 is: 58,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,917.77 : 208,352.39 = 39,054.25 : x
  2. Step 2: Convert to fraction form
    138,917.77/208,352.39 = 39,054.25/x
  3. Step 3: Cross multiply
    138,917.77x = 208,352.39 × 39,054.25
  4. Step 4: Simplify right side
    138,917.77x = 8,137,046,392.33
  5. Step 5: Solve for x
    x = 8,137,046,392.33/138,917.77
  6. Step 6: Final answer
    x = 58,574.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.