Home / 187,788.78-259,153.02-102,910.50

Finding the Fourth Proportional to 187,788.78, 259,153.02 and 102,910.50

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Solution

The fourth proportional to 187,788.78, 259,153.02 and 102,910.50 is: 142,018.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,788.78 : 259,153.02 = 102,910.50 : x
  2. Step 2: Convert to fraction form
    187,788.78/259,153.02 = 102,910.50/x
  3. Step 3: Cross multiply
    187,788.78x = 259,153.02 × 102,910.50
  4. Step 4: Simplify right side
    187,788.78x = 26,669,566,864.71
  5. Step 5: Solve for x
    x = 26,669,566,864.71/187,788.78
  6. Step 6: Final answer
    x = 142,018.96

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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.