Home / 190,246.40-262,528.80-105,358.40

Finding the Fourth Proportional to 190,246.40, 262,528.80 and 105,358.40

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Solution

The fourth proportional to 190,246.40, 262,528.80 and 105,358.40 is: 145,388.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,246.40 : 262,528.80 = 105,358.40 : x
  2. Step 2: Convert to fraction form
    190,246.40/262,528.80 = 105,358.40/x
  3. Step 3: Cross multiply
    190,246.40x = 262,528.80 × 105,358.40
  4. Step 4: Simplify right side
    190,246.40x = 27,659,614,321.92
  5. Step 5: Solve for x
    x = 27,659,614,321.92/190,246.40
  6. Step 6: Final answer
    x = 145,388.37

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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.