Home / 111,846.10-154,354-64,107.40

Finding the Fourth Proportional to 111,846.10, 154,354 and 64,107.40

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Solution

The fourth proportional to 111,846.10, 154,354 and 64,107.40 is: 88,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,846.10 : 154,354 = 64,107.40 : x
  2. Step 2: Convert to fraction form
    111,846.10/154,354 = 64,107.40/x
  3. Step 3: Cross multiply
    111,846.10x = 154,354 × 64,107.40
  4. Step 4: Simplify right side
    111,846.10x = 9,895,233,619.60
  5. Step 5: Solve for x
    x = 9,895,233,619.60/111,846.10
  6. Step 6: Final answer
    x = 88,471.87

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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.