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Finding the Fourth Proportional to 84,908.60, 119,047 and 84,908.60

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Solution

The fourth proportional to 84,908.60, 119,047 and 84,908.60 is: 119,047

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,908.60 : 119,047 = 84,908.60 : x
  2. Step 2: Convert to fraction form
    84,908.60/119,047 = 84,908.60/x
  3. Step 3: Cross multiply
    84,908.60x = 119,047 × 84,908.60
  4. Step 4: Simplify right side
    84,908.60x = 10,108,114,104.20
  5. Step 5: Solve for x
    x = 10,108,114,104.20/84,908.60
  6. Step 6: Final answer
    x = 119,047

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.