Home / 138,889.16-208,346.04-39,050.22

Finding the Fourth Proportional to 138,889.16, 208,346.04 and 39,050.22

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Solution

The fourth proportional to 138,889.16, 208,346.04 and 39,050.22 is: 58,578.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,889.16 : 208,346.04 = 39,050.22 : x
  2. Step 2: Convert to fraction form
    138,889.16/208,346.04 = 39,050.22/x
  3. Step 3: Cross multiply
    138,889.16x = 208,346.04 × 39,050.22
  4. Step 4: Simplify right side
    138,889.16x = 8,135,958,698.13
  5. Step 5: Solve for x
    x = 8,135,958,698.13/138,889.16
  6. Step 6: Final answer
    x = 58,578.79

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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.