Home / 154,684.86-213,389.19-100,945.02

Finding the Fourth Proportional to 154,684.86, 213,389.19 and 100,945.02

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Solution

The fourth proportional to 154,684.86, 213,389.19 and 100,945.02 is: 139,254.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,684.86 : 213,389.19 = 100,945.02 : x
  2. Step 2: Convert to fraction form
    154,684.86/213,389.19 = 100,945.02/x
  3. Step 3: Cross multiply
    154,684.86x = 213,389.19 × 100,945.02
  4. Step 4: Simplify right side
    154,684.86x = 21,540,576,052.33
  5. Step 5: Solve for x
    x = 21,540,576,052.33/154,684.86
  6. Step 6: Final answer
    x = 139,254.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.