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Finding the Fourth Proportional to 104,101.60, 156,129.01 and 47,887.72

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Solution

The fourth proportional to 104,101.60, 156,129.01 and 47,887.72 is: 71,820.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,101.60 : 156,129.01 = 47,887.72 : x
  2. Step 2: Convert to fraction form
    104,101.60/156,129.01 = 47,887.72/x
  3. Step 3: Cross multiply
    104,101.60x = 156,129.01 × 47,887.72
  4. Step 4: Simplify right side
    104,101.60x = 7,476,662,314.76
  5. Step 5: Solve for x
    x = 7,476,662,314.76/104,101.60
  6. Step 6: Final answer
    x = 71,820.82

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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.