Home / 138,106.98-207,164.94-38,268.15

Finding the Fourth Proportional to 138,106.98, 207,164.94 and 38,268.15

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Solution

The fourth proportional to 138,106.98, 207,164.94 and 38,268.15 is: 57,403.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,106.98 : 207,164.94 = 38,268.15 : x
  2. Step 2: Convert to fraction form
    138,106.98/207,164.94 = 38,268.15/x
  3. Step 3: Cross multiply
    138,106.98x = 207,164.94 × 38,268.15
  4. Step 4: Simplify right side
    138,106.98x = 7,927,818,998.66
  5. Step 5: Solve for x
    x = 7,927,818,998.66/138,106.98
  6. Step 6: Final answer
    x = 57,403.46

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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.