Home / 202,971.51-280,096.26-111,090.35

Finding the Fourth Proportional to 202,971.51, 280,096.26 and 111,090.35

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Solution

The fourth proportional to 202,971.51, 280,096.26 and 111,090.35 is: 153,302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,971.51 : 280,096.26 = 111,090.35 : x
  2. Step 2: Convert to fraction form
    202,971.51/280,096.26 = 111,090.35/x
  3. Step 3: Cross multiply
    202,971.51x = 280,096.26 × 111,090.35
  4. Step 4: Simplify right side
    202,971.51x = 31,115,991,557.09
  5. Step 5: Solve for x
    x = 31,115,991,557.09/202,971.51
  6. Step 6: Final answer
    x = 153,302.26

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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.