Home / 103,146.74-154,728.03-43,982.72

Finding the Fourth Proportional to 103,146.74, 154,728.03 and 43,982.72

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Solution

The fourth proportional to 103,146.74, 154,728.03 and 43,982.72 is: 65,977.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,146.74 : 154,728.03 = 43,982.72 : x
  2. Step 2: Convert to fraction form
    103,146.74/154,728.03 = 43,982.72/x
  3. Step 3: Cross multiply
    103,146.74x = 154,728.03 × 43,982.72
  4. Step 4: Simplify right side
    103,146.74x = 6,805,359,619.64
  5. Step 5: Solve for x
    x = 6,805,359,619.64/103,146.74
  6. Step 6: Final answer
    x = 65,977.46

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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.