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Finding the Fourth Proportional to 104,659.40, 156,985.60 and 45,495.08

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Solution

The fourth proportional to 104,659.40, 156,985.60 and 45,495.08 is: 68,241.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,659.40 : 156,985.60 = 45,495.08 : x
  2. Step 2: Convert to fraction form
    104,659.40/156,985.60 = 45,495.08/x
  3. Step 3: Cross multiply
    104,659.40x = 156,985.60 × 45,495.08
  4. Step 4: Simplify right side
    104,659.40x = 7,142,072,430.85
  5. Step 5: Solve for x
    x = 7,142,072,430.85/104,659.40
  6. Step 6: Final answer
    x = 68,241.10

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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.