Home / 154,982.22-213,882.56-86,072.00

Finding the Fourth Proportional to 154,982.22, 213,882.56 and 86,072.00

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Solution

The fourth proportional to 154,982.22, 213,882.56 and 86,072.00 is: 118,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,982.22 : 213,882.56 = 86,072.00 : x
  2. Step 2: Convert to fraction form
    154,982.22/213,882.56 = 86,072.00/x
  3. Step 3: Cross multiply
    154,982.22x = 213,882.56 × 86,072.00
  4. Step 4: Simplify right side
    154,982.22x = 18,409,298,634.91
  5. Step 5: Solve for x
    x = 18,409,298,634.91/154,982.22
  6. Step 6: Final answer
    x = 118,783.30

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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.