Home / 190,540.23-262,956.02-105,655.47

Finding the Fourth Proportional to 190,540.23, 262,956.02 and 105,655.47

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Solution

The fourth proportional to 190,540.23, 262,956.02 and 105,655.47 is: 145,810.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,540.23 : 262,956.02 = 105,655.47 : x
  2. Step 2: Convert to fraction form
    190,540.23/262,956.02 = 105,655.47/x
  3. Step 3: Cross multiply
    190,540.23x = 262,956.02 × 105,655.47
  4. Step 4: Simplify right side
    190,540.23x = 27,782,741,354.15
  5. Step 5: Solve for x
    x = 27,782,741,354.15/190,540.23
  6. Step 6: Final answer
    x = 145,810.37

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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.