Home / 187,018.60-258,086.60-102,135.68

Finding the Fourth Proportional to 187,018.60, 258,086.60 and 102,135.68

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Solution

The fourth proportional to 187,018.60, 258,086.60 and 102,135.68 is: 140,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,018.60 : 258,086.60 = 102,135.68 : x
  2. Step 2: Convert to fraction form
    187,018.60/258,086.60 = 102,135.68/x
  3. Step 3: Cross multiply
    187,018.60x = 258,086.60 × 102,135.68
  4. Step 4: Simplify right side
    187,018.60x = 26,359,850,389.89
  5. Step 5: Solve for x
    x = 26,359,850,389.89/187,018.60
  6. Step 6: Final answer
    x = 140,947.75

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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.