Home / 138,448.67-207,670.03-38,606.21

Finding the Fourth Proportional to 138,448.67, 207,670.03 and 38,606.21

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Solution

The fourth proportional to 138,448.67, 207,670.03 and 38,606.21 is: 57,908.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,448.67 : 207,670.03 = 38,606.21 : x
  2. Step 2: Convert to fraction form
    138,448.67/207,670.03 = 38,606.21/x
  3. Step 3: Cross multiply
    138,448.67x = 207,670.03 × 38,606.21
  4. Step 4: Simplify right side
    138,448.67x = 8,017,351,654.02
  5. Step 5: Solve for x
    x = 8,017,351,654.02/138,448.67
  6. Step 6: Final answer
    x = 57,908.48

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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.