Home / 111,056.70-166,585.05-107,776.20

Finding the Fourth Proportional to 111,056.70, 166,585.05 and 107,776.20

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Solution

The fourth proportional to 111,056.70, 166,585.05 and 107,776.20 is: 161,664.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,056.70 : 166,585.05 = 107,776.20 : x
  2. Step 2: Convert to fraction form
    111,056.70/166,585.05 = 107,776.20/x
  3. Step 3: Cross multiply
    111,056.70x = 166,585.05 × 107,776.20
  4. Step 4: Simplify right side
    111,056.70x = 17,953,903,665.81
  5. Step 5: Solve for x
    x = 17,953,903,665.81/111,056.70
  6. Step 6: Final answer
    x = 161,664.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.