Home / 151,905.92-209,626.11-83,911.93

Finding the Fourth Proportional to 151,905.92, 209,626.11 and 83,911.93

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Solution

The fourth proportional to 151,905.92, 209,626.11 and 83,911.93 is: 115,796.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,905.92 : 209,626.11 = 83,911.93 : x
  2. Step 2: Convert to fraction form
    151,905.92/209,626.11 = 83,911.93/x
  3. Step 3: Cross multiply
    151,905.92x = 209,626.11 × 83,911.93
  4. Step 4: Simplify right side
    151,905.92x = 17,590,130,944.43
  5. Step 5: Solve for x
    x = 17,590,130,944.43/151,905.92
  6. Step 6: Final answer
    x = 115,796.22

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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.