Home / 190,245.38-262,528.09-105,355.76

Finding the Fourth Proportional to 190,245.38, 262,528.09 and 105,355.76

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Solution

The fourth proportional to 190,245.38, 262,528.09 and 105,355.76 is: 145,385.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,245.38 : 262,528.09 = 105,355.76 : x
  2. Step 2: Convert to fraction form
    190,245.38/262,528.09 = 105,355.76/x
  3. Step 3: Cross multiply
    190,245.38x = 262,528.09 × 105,355.76
  4. Step 4: Simplify right side
    190,245.38x = 27,658,844,867.27
  5. Step 5: Solve for x
    x = 27,658,844,867.27/190,245.38
  6. Step 6: Final answer
    x = 145,385.11

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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.