Home / 401,440.35-602,161.56-135,387.75

Finding the Fourth Proportional to 401,440.35, 602,161.56 and 135,387.75

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Solution

The fourth proportional to 401,440.35, 602,161.56 and 135,387.75 is: 203,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,440.35 : 602,161.56 = 135,387.75 : x
  2. Step 2: Convert to fraction form
    401,440.35/602,161.56 = 135,387.75/x
  3. Step 3: Cross multiply
    401,440.35x = 602,161.56 × 135,387.75
  4. Step 4: Simplify right side
    401,440.35x = 81,525,298,744.89
  5. Step 5: Solve for x
    x = 81,525,298,744.89/401,440.35
  6. Step 6: Final answer
    x = 203,081.97

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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.