Home / 138,840.51-208,268.83-39,008.48

Finding the Fourth Proportional to 138,840.51, 208,268.83 and 39,008.48

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Solution

The fourth proportional to 138,840.51, 208,268.83 and 39,008.48 is: 58,514.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,840.51 : 208,268.83 = 39,008.48 : x
  2. Step 2: Convert to fraction form
    138,840.51/208,268.83 = 39,008.48/x
  3. Step 3: Cross multiply
    138,840.51x = 208,268.83 × 39,008.48
  4. Step 4: Simplify right side
    138,840.51x = 8,124,250,489.68
  5. Step 5: Solve for x
    x = 8,124,250,489.68/138,840.51
  6. Step 6: Final answer
    x = 58,514.99

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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.