Home / 151,914.60-209,640.96-83,936.16

Finding the Fourth Proportional to 151,914.60, 209,640.96 and 83,936.16

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Solution

The fourth proportional to 151,914.60, 209,640.96 and 83,936.16 is: 115,831.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,914.60 : 209,640.96 = 83,936.16 : x
  2. Step 2: Convert to fraction form
    151,914.60/209,640.96 = 83,936.16/x
  3. Step 3: Cross multiply
    151,914.60x = 209,640.96 × 83,936.16
  4. Step 4: Simplify right side
    151,914.60x = 17,596,457,161.11
  5. Step 5: Solve for x
    x = 17,596,457,161.11/151,914.60
  6. Step 6: Final answer
    x = 115,831.24

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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.