Home / 190,218.10-262,491.09-105,330.10

Finding the Fourth Proportional to 190,218.10, 262,491.09 and 105,330.10

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Solution

The fourth proportional to 190,218.10, 262,491.09 and 105,330.10 is: 145,350.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,218.10 : 262,491.09 = 105,330.10 : x
  2. Step 2: Convert to fraction form
    190,218.10/262,491.09 = 105,330.10/x
  3. Step 3: Cross multiply
    190,218.10x = 262,491.09 × 105,330.10
  4. Step 4: Simplify right side
    190,218.10x = 27,648,212,758.81
  5. Step 5: Solve for x
    x = 27,648,212,758.81/190,218.10
  6. Step 6: Final answer
    x = 145,350.06

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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.