Home / 124,928.14-187,380.06-68,749.78

Finding the Fourth Proportional to 124,928.14, 187,380.06 and 68,749.78

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Solution

The fourth proportional to 124,928.14, 187,380.06 and 68,749.78 is: 103,117.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,928.14 : 187,380.06 = 68,749.78 : x
  2. Step 2: Convert to fraction form
    124,928.14/187,380.06 = 68,749.78/x
  3. Step 3: Cross multiply
    124,928.14x = 187,380.06 × 68,749.78
  4. Step 4: Simplify right side
    124,928.14x = 12,882,337,901.39
  5. Step 5: Solve for x
    x = 12,882,337,901.39/124,928.14
  6. Step 6: Final answer
    x = 103,117.98

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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.