Home / 187,314.48-258,493.86-102,431.54

Finding the Fourth Proportional to 187,314.48, 258,493.86 and 102,431.54

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Solution

The fourth proportional to 187,314.48, 258,493.86 and 102,431.54 is: 141,355.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,314.48 : 258,493.86 = 102,431.54 : x
  2. Step 2: Convert to fraction form
    187,314.48/258,493.86 = 102,431.54/x
  3. Step 3: Cross multiply
    187,314.48x = 258,493.86 × 102,431.54
  4. Step 4: Simplify right side
    187,314.48x = 26,477,922,867.88
  5. Step 5: Solve for x
    x = 26,477,922,867.88/187,314.48
  6. Step 6: Final answer
    x = 141,355.45

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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.