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Finding the Fourth Proportional to 154,877.36, 213,796 and 104,644.40

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Solution

The fourth proportional to 154,877.36, 213,796 and 104,644.40 is: 144,453.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,877.36 : 213,796 = 104,644.40 : x
  2. Step 2: Convert to fraction form
    154,877.36/213,796 = 104,644.40/x
  3. Step 3: Cross multiply
    154,877.36x = 213,796 × 104,644.40
  4. Step 4: Simplify right side
    154,877.36x = 22,372,554,142.40
  5. Step 5: Solve for x
    x = 22,372,554,142.40/154,877.36
  6. Step 6: Final answer
    x = 144,453.35

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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.