Home / 112,579.25-168,889.32-53,414.36

Finding the Fourth Proportional to 112,579.25, 168,889.32 and 53,414.36

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Solution

The fourth proportional to 112,579.25, 168,889.32 and 53,414.36 is: 80,131.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,579.25 : 168,889.32 = 53,414.36 : x
  2. Step 2: Convert to fraction form
    112,579.25/168,889.32 = 53,414.36/x
  3. Step 3: Cross multiply
    112,579.25x = 168,889.32 × 53,414.36
  4. Step 4: Simplify right side
    112,579.25x = 9,021,114,094.19
  5. Step 5: Solve for x
    x = 9,021,114,094.19/112,579.25
  6. Step 6: Final answer
    x = 80,131.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.