Home / 190,138.45-262,393.01-105,253.69

Finding the Fourth Proportional to 190,138.45, 262,393.01 and 105,253.69

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Solution

The fourth proportional to 190,138.45, 262,393.01 and 105,253.69 is: 145,251.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,138.45 : 262,393.01 = 105,253.69 : x
  2. Step 2: Convert to fraction form
    190,138.45/262,393.01 = 105,253.69/x
  3. Step 3: Cross multiply
    190,138.45x = 262,393.01 × 105,253.69
  4. Step 4: Simplify right side
    190,138.45x = 27,617,832,532.71
  5. Step 5: Solve for x
    x = 27,617,832,532.71/190,138.45
  6. Step 6: Final answer
    x = 145,251.17

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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.