Home / 401,335.20-602,091.60-135,087

Finding the Fourth Proportional to 401,335.20, 602,091.60 and 135,087

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Solution

The fourth proportional to 401,335.20, 602,091.60 and 135,087 is: 202,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,335.20 : 602,091.60 = 135,087 : x
  2. Step 2: Convert to fraction form
    401,335.20/602,091.60 = 135,087/x
  3. Step 3: Cross multiply
    401,335.20x = 602,091.60 × 135,087
  4. Step 4: Simplify right side
    401,335.20x = 81,334,747,969.20
  5. Step 5: Solve for x
    x = 81,334,747,969.20/401,335.20
  6. Step 6: Final answer
    x = 202,660.39

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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.