Home / 189,680.96-261,756.60-104,805.92

Finding the Fourth Proportional to 189,680.96, 261,756.60 and 104,805.92

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Solution

The fourth proportional to 189,680.96, 261,756.60 and 104,805.92 is: 144,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,680.96 : 261,756.60 = 104,805.92 : x
  2. Step 2: Convert to fraction form
    189,680.96/261,756.60 = 104,805.92/x
  3. Step 3: Cross multiply
    189,680.96x = 261,756.60 × 104,805.92
  4. Step 4: Simplify right side
    189,680.96x = 27,433,639,970.29
  5. Step 5: Solve for x
    x = 27,433,639,970.29/189,680.96
  6. Step 6: Final answer
    x = 144,630.44

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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.