Home / 111,145.81-166,688.99-31,179.01

Finding the Fourth Proportional to 111,145.81, 166,688.99 and 31,179.01

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Solution

The fourth proportional to 111,145.81, 166,688.99 and 31,179.01 is: 46,760.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,145.81 : 166,688.99 = 31,179.01 : x
  2. Step 2: Convert to fraction form
    111,145.81/166,688.99 = 31,179.01/x
  3. Step 3: Cross multiply
    111,145.81x = 166,688.99 × 31,179.01
  4. Step 4: Simplify right side
    111,145.81x = 5,197,198,246.16
  5. Step 5: Solve for x
    x = 5,197,198,246.16/111,145.81
  6. Step 6: Final answer
    x = 46,760.18

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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.