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Finding the Fourth Proportional to 103,069.36, 154,662.40 and 43,898.88

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Solution

The fourth proportional to 103,069.36, 154,662.40 and 43,898.88 is: 65,873.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,069.36 : 154,662.40 = 43,898.88 : x
  2. Step 2: Convert to fraction form
    103,069.36/154,662.40 = 43,898.88/x
  3. Step 3: Cross multiply
    103,069.36x = 154,662.40 × 43,898.88
  4. Step 4: Simplify right side
    103,069.36x = 6,789,506,138.11
  5. Step 5: Solve for x
    x = 6,789,506,138.11/103,069.36
  6. Step 6: Final answer
    x = 65,873.18

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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.