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Finding the Fourth Proportional to 151,730.45, 209,388.03 and 84,662.45

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Solution

The fourth proportional to 151,730.45, 209,388.03 and 84,662.45 is: 116,834.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,730.45 : 209,388.03 = 84,662.45 : x
  2. Step 2: Convert to fraction form
    151,730.45/209,388.03 = 84,662.45/x
  3. Step 3: Cross multiply
    151,730.45x = 209,388.03 × 84,662.45
  4. Step 4: Simplify right side
    151,730.45x = 17,727,303,620.47
  5. Step 5: Solve for x
    x = 17,727,303,620.47/151,730.45
  6. Step 6: Final answer
    x = 116,834.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.