Home / 187,660.75-258,971.85-102,780.85

Finding the Fourth Proportional to 187,660.75, 258,971.85 and 102,780.85

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Solution

The fourth proportional to 187,660.75, 258,971.85 and 102,780.85 is: 141,837.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,660.75 : 258,971.85 = 102,780.85 : x
  2. Step 2: Convert to fraction form
    187,660.75/258,971.85 = 102,780.85/x
  3. Step 3: Cross multiply
    187,660.75x = 258,971.85 × 102,780.85
  4. Step 4: Simplify right side
    187,660.75x = 26,617,346,869.07
  5. Step 5: Solve for x
    x = 26,617,346,869.07/187,660.75
  6. Step 6: Final answer
    x = 141,837.58

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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.