Home / 190,340.28-262,658.16-105,451.20

Finding the Fourth Proportional to 190,340.28, 262,658.16 and 105,451.20

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Solution

The fourth proportional to 190,340.28, 262,658.16 and 105,451.20 is: 145,516.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,340.28 : 262,658.16 = 105,451.20 : x
  2. Step 2: Convert to fraction form
    190,340.28/262,658.16 = 105,451.20/x
  3. Step 3: Cross multiply
    190,340.28x = 262,658.16 × 105,451.20
  4. Step 4: Simplify right side
    190,340.28x = 27,697,618,161.79
  5. Step 5: Solve for x
    x = 27,697,618,161.79/190,340.28
  6. Step 6: Final answer
    x = 145,516.33

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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.