Home / 189,941.28-262,118.88-105,057.60

Finding the Fourth Proportional to 189,941.28, 262,118.88 and 105,057.60

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Solution

The fourth proportional to 189,941.28, 262,118.88 and 105,057.60 is: 144,979.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,941.28 : 262,118.88 = 105,057.60 : x
  2. Step 2: Convert to fraction form
    189,941.28/262,118.88 = 105,057.60/x
  3. Step 3: Cross multiply
    189,941.28x = 262,118.88 × 105,057.60
  4. Step 4: Simplify right side
    189,941.28x = 27,537,580,447.49
  5. Step 5: Solve for x
    x = 27,537,580,447.49/189,941.28
  6. Step 6: Final answer
    x = 144,979.44

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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.