Home / 209,724.72-314,586.36-85,065.36

Finding the Fourth Proportional to 209,724.72, 314,586.36 and 85,065.36

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Solution

The fourth proportional to 209,724.72, 314,586.36 and 85,065.36 is: 127,597.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,724.72 : 314,586.36 = 85,065.36 : x
  2. Step 2: Convert to fraction form
    209,724.72/314,586.36 = 85,065.36/x
  3. Step 3: Cross multiply
    209,724.72x = 314,586.36 × 85,065.36
  4. Step 4: Simplify right side
    209,724.72x = 26,760,401,964.49
  5. Step 5: Solve for x
    x = 26,760,401,964.49/209,724.72
  6. Step 6: Final answer
    x = 127,597.75

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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.