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Finding the Fourth Proportional to 103,162.58, 154,788.41 and 55,811.03

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Solution

The fourth proportional to 103,162.58, 154,788.41 and 55,811.03 is: 83,740.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,162.58 : 154,788.41 = 55,811.03 : x
  2. Step 2: Convert to fraction form
    103,162.58/154,788.41 = 55,811.03/x
  3. Step 3: Cross multiply
    103,162.58x = 154,788.41 × 55,811.03
  4. Step 4: Simplify right side
    103,162.58x = 8,638,900,594.16
  5. Step 5: Solve for x
    x = 8,638,900,594.16/103,162.58
  6. Step 6: Final answer
    x = 83,740.64

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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.