Home / 124,944.78-187,333.80-68,811.48

Finding the Fourth Proportional to 124,944.78, 187,333.80 and 68,811.48

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Solution

The fourth proportional to 124,944.78, 187,333.80 and 68,811.48 is: 103,171.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,944.78 : 187,333.80 = 68,811.48 : x
  2. Step 2: Convert to fraction form
    124,944.78/187,333.80 = 68,811.48/x
  3. Step 3: Cross multiply
    124,944.78x = 187,333.80 × 68,811.48
  4. Step 4: Simplify right side
    124,944.78x = 12,890,716,032.02
  5. Step 5: Solve for x
    x = 12,890,716,032.02/124,944.78
  6. Step 6: Final answer
    x = 103,171.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.