Home / 104,990.37-157,211.03-57,506.68

Finding the Fourth Proportional to 104,990.37, 157,211.03 and 57,506.68

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Solution

The fourth proportional to 104,990.37, 157,211.03 and 57,506.68 is: 86,109.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,990.37 : 157,211.03 = 57,506.68 : x
  2. Step 2: Convert to fraction form
    104,990.37/157,211.03 = 57,506.68/x
  3. Step 3: Cross multiply
    104,990.37x = 157,211.03 × 57,506.68
  4. Step 4: Simplify right side
    104,990.37x = 9,040,684,107.15
  5. Step 5: Solve for x
    x = 9,040,684,107.15/104,990.37
  6. Step 6: Final answer
    x = 86,109.65

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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.