Home / 138,199.07-207,298.70-38,359.36

Finding the Fourth Proportional to 138,199.07, 207,298.70 and 38,359.36

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Solution

The fourth proportional to 138,199.07, 207,298.70 and 38,359.36 is: 57,539.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,199.07 : 207,298.70 = 38,359.36 : x
  2. Step 2: Convert to fraction form
    138,199.07/207,298.70 = 38,359.36/x
  3. Step 3: Cross multiply
    138,199.07x = 207,298.70 × 38,359.36
  4. Step 4: Simplify right side
    138,199.07x = 7,951,845,723.15
  5. Step 5: Solve for x
    x = 7,951,845,723.15/138,199.07
  6. Step 6: Final answer
    x = 57,539.07

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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.