Home / 111,971.85-154,518.48-64,222.15

Finding the Fourth Proportional to 111,971.85, 154,518.48 and 64,222.15

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Solution

The fourth proportional to 111,971.85, 154,518.48 and 64,222.15 is: 88,625.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,971.85 : 154,518.48 = 64,222.15 : x
  2. Step 2: Convert to fraction form
    111,971.85/154,518.48 = 64,222.15/x
  3. Step 3: Cross multiply
    111,971.85x = 154,518.48 × 64,222.15
  4. Step 4: Simplify right side
    111,971.85x = 9,923,508,614.04
  5. Step 5: Solve for x
    x = 9,923,508,614.04/111,971.85
  6. Step 6: Final answer
    x = 88,625.03

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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.