Home / 178,021.09-266,935.85-71,351.51

Finding the Fourth Proportional to 178,021.09, 266,935.85 and 71,351.51

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Solution

The fourth proportional to 178,021.09, 266,935.85 and 71,351.51 is: 106,988.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,021.09 : 266,935.85 = 71,351.51 : x
  2. Step 2: Convert to fraction form
    178,021.09/266,935.85 = 71,351.51/x
  3. Step 3: Cross multiply
    178,021.09x = 266,935.85 × 71,351.51
  4. Step 4: Simplify right side
    178,021.09x = 19,046,276,548.78
  5. Step 5: Solve for x
    x = 19,046,276,548.78/178,021.09
  6. Step 6: Final answer
    x = 106,988.88

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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.