Home / 102,583.20-153,891-43,419.18

Finding the Fourth Proportional to 102,583.20, 153,891 and 43,419.18

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Solution

The fourth proportional to 102,583.20, 153,891 and 43,419.18 is: 65,135.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,583.20 : 153,891 = 43,419.18 : x
  2. Step 2: Convert to fraction form
    102,583.20/153,891 = 43,419.18/x
  3. Step 3: Cross multiply
    102,583.20x = 153,891 × 43,419.18
  4. Step 4: Simplify right side
    102,583.20x = 6,681,821,029.38
  5. Step 5: Solve for x
    x = 6,681,821,029.38/102,583.20
  6. Step 6: Final answer
    x = 65,135.63

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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.