Home / 190,031.40-262,247.46-105,154.44

Finding the Fourth Proportional to 190,031.40, 262,247.46 and 105,154.44

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Solution

The fourth proportional to 190,031.40, 262,247.46 and 105,154.44 is: 145,115.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,031.40 : 262,247.46 = 105,154.44 : x
  2. Step 2: Convert to fraction form
    190,031.40/262,247.46 = 105,154.44/x
  3. Step 3: Cross multiply
    190,031.40x = 262,247.46 × 105,154.44
  4. Step 4: Simplify right side
    190,031.40x = 27,576,484,797.72
  5. Step 5: Solve for x
    x = 27,576,484,797.72/190,031.40
  6. Step 6: Final answer
    x = 145,115.41

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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.