Home / 138,723.22-208,120.07-38,883.84

Finding the Fourth Proportional to 138,723.22, 208,120.07 and 38,883.84

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Solution

The fourth proportional to 138,723.22, 208,120.07 and 38,883.84 is: 58,335.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,723.22 : 208,120.07 = 38,883.84 : x
  2. Step 2: Convert to fraction form
    138,723.22/208,120.07 = 38,883.84/x
  3. Step 3: Cross multiply
    138,723.22x = 208,120.07 × 38,883.84
  4. Step 4: Simplify right side
    138,723.22x = 8,092,507,502.67
  5. Step 5: Solve for x
    x = 8,092,507,502.67/138,723.22
  6. Step 6: Final answer
    x = 58,335.64

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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.