Home / 123,933.60-170,632.08-105,040.80

Finding the Fourth Proportional to 123,933.60, 170,632.08 and 105,040.80

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Solution

The fourth proportional to 123,933.60, 170,632.08 and 105,040.80 is: 144,620.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,933.60 : 170,632.08 = 105,040.80 : x
  2. Step 2: Convert to fraction form
    123,933.60/170,632.08 = 105,040.80/x
  3. Step 3: Cross multiply
    123,933.60x = 170,632.08 × 105,040.80
  4. Step 4: Simplify right side
    123,933.60x = 17,923,330,188.86
  5. Step 5: Solve for x
    x = 17,923,330,188.86/123,933.60
  6. Step 6: Final answer
    x = 144,620.43

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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.