Home / 149,837.04-206,781.38-86,174.88

Finding the Fourth Proportional to 149,837.04, 206,781.38 and 86,174.88

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Solution

The fourth proportional to 149,837.04, 206,781.38 and 86,174.88 is: 118,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,837.04 : 206,781.38 = 86,174.88 : x
  2. Step 2: Convert to fraction form
    149,837.04/206,781.38 = 86,174.88/x
  3. Step 3: Cross multiply
    149,837.04x = 206,781.38 × 86,174.88
  4. Step 4: Simplify right side
    149,837.04x = 17,819,360,607.73
  5. Step 5: Solve for x
    x = 17,819,360,607.73/149,837.04
  6. Step 6: Final answer
    x = 118,924.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.