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Finding the Fourth Proportional to 104,473.80, 156,710.70 and 102,918.60

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Solution

The fourth proportional to 104,473.80, 156,710.70 and 102,918.60 is: 154,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,473.80 : 156,710.70 = 102,918.60 : x
  2. Step 2: Convert to fraction form
    104,473.80/156,710.70 = 102,918.60/x
  3. Step 3: Cross multiply
    104,473.80x = 156,710.70 × 102,918.60
  4. Step 4: Simplify right side
    104,473.80x = 16,128,445,849.02
  5. Step 5: Solve for x
    x = 16,128,445,849.02/104,473.80
  6. Step 6: Final answer
    x = 154,377.90

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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.