Home / 151,857.16-209,558.66-83,872.92

Finding the Fourth Proportional to 151,857.16, 209,558.66 and 83,872.92

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Solution

The fourth proportional to 151,857.16, 209,558.66 and 83,872.92 is: 115,742.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,857.16 : 209,558.66 = 83,872.92 : x
  2. Step 2: Convert to fraction form
    151,857.16/209,558.66 = 83,872.92/x
  3. Step 3: Cross multiply
    151,857.16x = 209,558.66 × 83,872.92
  4. Step 4: Simplify right side
    151,857.16x = 17,576,296,725.49
  5. Step 5: Solve for x
    x = 17,576,296,725.49/151,857.16
  6. Step 6: Final answer
    x = 115,742.30

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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.