Home / 111,890.99-154,412.92-68,895.30

Finding the Fourth Proportional to 111,890.99, 154,412.92 and 68,895.30

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Solution

The fourth proportional to 111,890.99, 154,412.92 and 68,895.30 is: 95,077.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,890.99 : 154,412.92 = 68,895.30 : x
  2. Step 2: Convert to fraction form
    111,890.99/154,412.92 = 68,895.30/x
  3. Step 3: Cross multiply
    111,890.99x = 154,412.92 × 68,895.30
  4. Step 4: Simplify right side
    111,890.99x = 10,638,324,447.28
  5. Step 5: Solve for x
    x = 10,638,324,447.28/111,890.99
  6. Step 6: Final answer
    x = 95,077.58

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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.