Home / 111,912.12-154,453.49-64,156.23

Finding the Fourth Proportional to 111,912.12, 154,453.49 and 64,156.23

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Solution

The fourth proportional to 111,912.12, 154,453.49 and 64,156.23 is: 88,544.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,912.12 : 154,453.49 = 64,156.23 : x
  2. Step 2: Convert to fraction form
    111,912.12/154,453.49 = 64,156.23/x
  3. Step 3: Cross multiply
    111,912.12x = 154,453.49 × 64,156.23
  4. Step 4: Simplify right side
    111,912.12x = 9,909,153,307.96
  5. Step 5: Solve for x
    x = 9,909,153,307.96/111,912.12
  6. Step 6: Final answer
    x = 88,544.06

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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.