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Finding the Fourth Proportional to 103,161.58, 154,786.91 and 55,810.03

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Solution

The fourth proportional to 103,161.58, 154,786.91 and 55,810.03 is: 83,739.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,161.58 : 154,786.91 = 55,810.03 : x
  2. Step 2: Convert to fraction form
    103,161.58/154,786.91 = 55,810.03/x
  3. Step 3: Cross multiply
    103,161.58x = 154,786.91 × 55,810.03
  4. Step 4: Simplify right side
    103,161.58x = 8,638,662,090.71
  5. Step 5: Solve for x
    x = 8,638,662,090.71/103,161.58
  6. Step 6: Final answer
    x = 83,739.14

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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.