Home / 105,415.41-158,185.49-38,901.86

Finding the Fourth Proportional to 105,415.41, 158,185.49 and 38,901.86

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Solution

The fourth proportional to 105,415.41, 158,185.49 and 38,901.86 is: 58,375.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,415.41 : 158,185.49 = 38,901.86 : x
  2. Step 2: Convert to fraction form
    105,415.41/158,185.49 = 38,901.86/x
  3. Step 3: Cross multiply
    105,415.41x = 158,185.49 × 38,901.86
  4. Step 4: Simplify right side
    105,415.41x = 6,153,708,800.57
  5. Step 5: Solve for x
    x = 6,153,708,800.57/105,415.41
  6. Step 6: Final answer
    x = 58,375.80

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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.