Home / 111,035.40-166,516.65-40,905.60

Finding the Fourth Proportional to 111,035.40, 166,516.65 and 40,905.60

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Solution

The fourth proportional to 111,035.40, 166,516.65 and 40,905.60 is: 61,344.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,035.40 : 166,516.65 = 40,905.60 : x
  2. Step 2: Convert to fraction form
    111,035.40/166,516.65 = 40,905.60/x
  3. Step 3: Cross multiply
    111,035.40x = 166,516.65 × 40,905.60
  4. Step 4: Simplify right side
    111,035.40x = 6,811,463,478.24
  5. Step 5: Solve for x
    x = 6,811,463,478.24/111,035.40
  6. Step 6: Final answer
    x = 61,344.97

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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.