Home / 231,914.79-320,035.73-135,140.04

Finding the Fourth Proportional to 231,914.79, 320,035.73 and 135,140.04

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Solution

The fourth proportional to 231,914.79, 320,035.73 and 135,140.04 is: 186,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,914.79 : 320,035.73 = 135,140.04 : x
  2. Step 2: Convert to fraction form
    231,914.79/320,035.73 = 135,140.04/x
  3. Step 3: Cross multiply
    231,914.79x = 320,035.73 × 135,140.04
  4. Step 4: Simplify right side
    231,914.79x = 43,249,640,677.93
  5. Step 5: Solve for x
    x = 43,249,640,677.93/231,914.79
  6. Step 6: Final answer
    x = 186,489.36

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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.