Home / 168,126.64-231,896.04-100,090.89

Finding the Fourth Proportional to 168,126.64, 231,896.04 and 100,090.89

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Solution

The fourth proportional to 168,126.64, 231,896.04 and 100,090.89 is: 138,054.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,126.64 : 231,896.04 = 100,090.89 : x
  2. Step 2: Convert to fraction form
    168,126.64/231,896.04 = 100,090.89/x
  3. Step 3: Cross multiply
    168,126.64x = 231,896.04 × 100,090.89
  4. Step 4: Simplify right side
    168,126.64x = 23,210,681,031.08
  5. Step 5: Solve for x
    x = 23,210,681,031.08/168,126.64
  6. Step 6: Final answer
    x = 138,054.75

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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.