Home / 209,141.28-313,840.74-82,760.22

Finding the Fourth Proportional to 209,141.28, 313,840.74 and 82,760.22

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Solution

The fourth proportional to 209,141.28, 313,840.74 and 82,760.22 is: 124,191.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,141.28 : 313,840.74 = 82,760.22 : x
  2. Step 2: Convert to fraction form
    209,141.28/313,840.74 = 82,760.22/x
  3. Step 3: Cross multiply
    209,141.28x = 313,840.74 × 82,760.22
  4. Step 4: Simplify right side
    209,141.28x = 25,973,528,687.36
  5. Step 5: Solve for x
    x = 25,973,528,687.36/209,141.28
  6. Step 6: Final answer
    x = 124,191.31

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1.5x scale

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.