Home / 209,087.06-313,324.40-103,695.54

Finding the Fourth Proportional to 209,087.06, 313,324.40 and 103,695.54

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Solution

The fourth proportional to 209,087.06, 313,324.40 and 103,695.54 is: 155,391.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,087.06 : 313,324.40 = 103,695.54 : x
  2. Step 2: Convert to fraction form
    209,087.06/313,324.40 = 103,695.54/x
  3. Step 3: Cross multiply
    209,087.06x = 313,324.40 × 103,695.54
  4. Step 4: Simplify right side
    209,087.06x = 32,490,342,853.18
  5. Step 5: Solve for x
    x = 32,490,342,853.18/209,087.06
  6. Step 6: Final answer
    x = 155,391.46

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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.