Home / 156,203.69-215,560.78-84,583.49

Finding the Fourth Proportional to 156,203.69, 215,560.78 and 84,583.49

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Solution

The fourth proportional to 156,203.69, 215,560.78 and 84,583.49 is: 116,725.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,203.69 : 215,560.78 = 84,583.49 : x
  2. Step 2: Convert to fraction form
    156,203.69/215,560.78 = 84,583.49/x
  3. Step 3: Cross multiply
    156,203.69x = 215,560.78 × 84,583.49
  4. Step 4: Simplify right side
    156,203.69x = 18,232,881,790.26
  5. Step 5: Solve for x
    x = 18,232,881,790.26/156,203.69
  6. Step 6: Final answer
    x = 116,725.04

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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.