Home / 190,589.16-263,021.54-105,700.52

Finding the Fourth Proportional to 190,589.16, 263,021.54 and 105,700.52

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Solution

The fourth proportional to 190,589.16, 263,021.54 and 105,700.52 is: 145,871.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,589.16 : 263,021.54 = 105,700.52 : x
  2. Step 2: Convert to fraction form
    190,589.16/263,021.54 = 105,700.52/x
  3. Step 3: Cross multiply
    190,589.16x = 263,021.54 × 105,700.52
  4. Step 4: Simplify right side
    190,589.16x = 27,801,513,549.20
  5. Step 5: Solve for x
    x = 27,801,513,549.20/190,589.16
  6. Step 6: Final answer
    x = 145,871.43

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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.