Home / 221,697.75-305,950.46-121,102.23

Finding the Fourth Proportional to 221,697.75, 305,950.46 and 121,102.23

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Solution

The fourth proportional to 221,697.75, 305,950.46 and 121,102.23 is: 167,125.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,697.75 : 305,950.46 = 121,102.23 : x
  2. Step 2: Convert to fraction form
    221,697.75/305,950.46 = 121,102.23/x
  3. Step 3: Cross multiply
    221,697.75x = 305,950.46 × 121,102.23
  4. Step 4: Simplify right side
    221,697.75x = 37,051,282,370.01
  5. Step 5: Solve for x
    x = 37,051,282,370.01/221,697.75
  6. Step 6: Final answer
    x = 167,125.21

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1.5x scale

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.