Home / 145,662.08-201,010.58-81,131.12

Finding the Fourth Proportional to 145,662.08, 201,010.58 and 81,131.12

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Solution

The fourth proportional to 145,662.08, 201,010.58 and 81,131.12 is: 111,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,662.08 : 201,010.58 = 81,131.12 : x
  2. Step 2: Convert to fraction form
    145,662.08/201,010.58 = 81,131.12/x
  3. Step 3: Cross multiply
    145,662.08x = 201,010.58 × 81,131.12
  4. Step 4: Simplify right side
    145,662.08x = 16,308,212,076.54
  5. Step 5: Solve for x
    x = 16,308,212,076.54/145,662.08
  6. Step 6: Final answer
    x = 111,959.22

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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.