Home / 111,771.75-154,166.90-73,519.23

Finding the Fourth Proportional to 111,771.75, 154,166.90 and 73,519.23

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Solution

The fourth proportional to 111,771.75, 154,166.90 and 73,519.23 is: 101,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,771.75 : 154,166.90 = 73,519.23 : x
  2. Step 2: Convert to fraction form
    111,771.75/154,166.90 = 73,519.23/x
  3. Step 3: Cross multiply
    111,771.75x = 154,166.90 × 73,519.23
  4. Step 4: Simplify right side
    111,771.75x = 11,334,231,411.89
  5. Step 5: Solve for x
    x = 11,334,231,411.89/111,771.75
  6. Step 6: Final answer
    x = 101,405.15

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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.