Home / 209,143.98-313,728.12-76,023.72

Finding the Fourth Proportional to 209,143.98, 313,728.12 and 76,023.72

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Solution

The fourth proportional to 209,143.98, 313,728.12 and 76,023.72 is: 114,040.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,143.98 : 313,728.12 = 76,023.72 : x
  2. Step 2: Convert to fraction form
    209,143.98/313,728.12 = 76,023.72/x
  3. Step 3: Cross multiply
    209,143.98x = 313,728.12 × 76,023.72
  4. Step 4: Simplify right side
    209,143.98x = 23,850,778,751.01
  5. Step 5: Solve for x
    x = 23,850,778,751.01/209,143.98
  6. Step 6: Final answer
    x = 114,040.00

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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.