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Finding the Fourth Proportional to 104,122.60, 156,160.50 and 47,908.78

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Solution

The fourth proportional to 104,122.60, 156,160.50 and 47,908.78 is: 71,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,122.60 : 156,160.50 = 47,908.78 : x
  2. Step 2: Convert to fraction form
    104,122.60/156,160.50 = 47,908.78/x
  3. Step 3: Cross multiply
    104,122.60x = 156,160.50 × 47,908.78
  4. Step 4: Simplify right side
    104,122.60x = 7,481,459,039.19
  5. Step 5: Solve for x
    x = 7,481,459,039.19/104,122.60
  6. Step 6: Final answer
    x = 71,852.40

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1.5x scale

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.