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Finding the Fourth Proportional to 104,499.60, 156,749.40 and 102,771.60

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Solution

The fourth proportional to 104,499.60, 156,749.40 and 102,771.60 is: 154,157.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,499.60 : 156,749.40 = 102,771.60 : x
  2. Step 2: Convert to fraction form
    104,499.60/156,749.40 = 102,771.60/x
  3. Step 3: Cross multiply
    104,499.60x = 156,749.40 × 102,771.60
  4. Step 4: Simplify right side
    104,499.60x = 16,109,386,637.04
  5. Step 5: Solve for x
    x = 16,109,386,637.04/104,499.60
  6. Step 6: Final answer
    x = 154,157.40

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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.