Home / 190,301.72-262,632.38-105,426.68

Finding the Fourth Proportional to 190,301.72, 262,632.38 and 105,426.68

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Solution

The fourth proportional to 190,301.72, 262,632.38 and 105,426.68 is: 145,497.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,301.72 : 262,632.38 = 105,426.68 : x
  2. Step 2: Convert to fraction form
    190,301.72/262,632.38 = 105,426.68/x
  3. Step 3: Cross multiply
    190,301.72x = 262,632.38 × 105,426.68
  4. Step 4: Simplify right side
    190,301.72x = 27,688,458,043.60
  5. Step 5: Solve for x
    x = 27,688,458,043.60/190,301.72
  6. Step 6: Final answer
    x = 145,497.68

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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.