Home / 103,661.43-154,683.37-92,491.30

Finding the Fourth Proportional to 103,661.43, 154,683.37 and 92,491.30

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Solution

The fourth proportional to 103,661.43, 154,683.37 and 92,491.30 is: 138,015.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.43 : 154,683.37 = 92,491.30 : x
  2. Step 2: Convert to fraction form
    103,661.43/154,683.37 = 92,491.30/x
  3. Step 3: Cross multiply
    103,661.43x = 154,683.37 × 92,491.30
  4. Step 4: Simplify right side
    103,661.43x = 14,306,865,979.68
  5. Step 5: Solve for x
    x = 14,306,865,979.68/103,661.43
  6. Step 6: Final answer
    x = 138,015.33

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.