Home / 189,822.92-261,946.58-103,786.34

Finding the Fourth Proportional to 189,822.92, 261,946.58 and 103,786.34

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Solution

The fourth proportional to 189,822.92, 261,946.58 and 103,786.34 is: 143,220.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,822.92 : 261,946.58 = 103,786.34 : x
  2. Step 2: Convert to fraction form
    189,822.92/261,946.58 = 103,786.34/x
  3. Step 3: Cross multiply
    189,822.92x = 261,946.58 × 103,786.34
  4. Step 4: Simplify right side
    189,822.92x = 27,186,474,985.05
  5. Step 5: Solve for x
    x = 27,186,474,985.05/189,822.92
  6. Step 6: Final answer
    x = 143,220.20

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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.