Home / 189,709.28-261,798.72-104,825.60

Finding the Fourth Proportional to 189,709.28, 261,798.72 and 104,825.60

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Solution

The fourth proportional to 189,709.28, 261,798.72 and 104,825.60 is: 144,659.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,709.28 : 261,798.72 = 104,825.60 : x
  2. Step 2: Convert to fraction form
    189,709.28/261,798.72 = 104,825.60/x
  3. Step 3: Cross multiply
    189,709.28x = 261,798.72 × 104,825.60
  4. Step 4: Simplify right side
    189,709.28x = 27,443,207,903.23
  5. Step 5: Solve for x
    x = 27,443,207,903.23/189,709.28
  6. Step 6: Final answer
    x = 144,659.28

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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.