Home / 105,795.18-158,707.62-30,920.81

Finding the Fourth Proportional to 105,795.18, 158,707.62 and 30,920.81

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Solution

The fourth proportional to 105,795.18, 158,707.62 and 30,920.81 is: 46,385.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,795.18 : 158,707.62 = 30,920.81 : x
  2. Step 2: Convert to fraction form
    105,795.18/158,707.62 = 30,920.81/x
  3. Step 3: Cross multiply
    105,795.18x = 158,707.62 × 30,920.81
  4. Step 4: Simplify right side
    105,795.18x = 4,907,367,370.03
  5. Step 5: Solve for x
    x = 4,907,367,370.03/105,795.18
  6. Step 6: Final answer
    x = 46,385.55

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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.