Home / 403,623.60-605,003.40-137,137.20

Finding the Fourth Proportional to 403,623.60, 605,003.40 and 137,137.20

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Solution

The fourth proportional to 403,623.60, 605,003.40 and 137,137.20 is: 205,559.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,623.60 : 605,003.40 = 137,137.20 : x
  2. Step 2: Convert to fraction form
    403,623.60/605,003.40 = 137,137.20/x
  3. Step 3: Cross multiply
    403,623.60x = 605,003.40 × 137,137.20
  4. Step 4: Simplify right side
    403,623.60x = 82,968,472,266.48
  5. Step 5: Solve for x
    x = 82,968,472,266.48/403,623.60
  6. Step 6: Final answer
    x = 205,559.02

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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.