Home / 187,556.28-258,828.10-102,678.80

Finding the Fourth Proportional to 187,556.28, 258,828.10 and 102,678.80

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Solution

The fourth proportional to 187,556.28, 258,828.10 and 102,678.80 is: 141,696.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,556.28 : 258,828.10 = 102,678.80 : x
  2. Step 2: Convert to fraction form
    187,556.28/258,828.10 = 102,678.80/x
  3. Step 3: Cross multiply
    187,556.28x = 258,828.10 × 102,678.80
  4. Step 4: Simplify right side
    187,556.28x = 26,576,158,714.28
  5. Step 5: Solve for x
    x = 26,576,158,714.28/187,556.28
  6. Step 6: Final answer
    x = 141,696.98

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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.