Home / 103,316.22-154,974.33-40,986.72

Finding the Fourth Proportional to 103,316.22, 154,974.33 and 40,986.72

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Solution

The fourth proportional to 103,316.22, 154,974.33 and 40,986.72 is: 61,480.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,316.22 : 154,974.33 = 40,986.72 : x
  2. Step 2: Convert to fraction form
    103,316.22/154,974.33 = 40,986.72/x
  3. Step 3: Cross multiply
    103,316.22x = 154,974.33 × 40,986.72
  4. Step 4: Simplify right side
    103,316.22x = 6,351,889,470.90
  5. Step 5: Solve for x
    x = 6,351,889,470.90/103,316.22
  6. Step 6: Final answer
    x = 61,480.08

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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.