Home / 111,328.94-166,980.09-31,372.91

Finding the Fourth Proportional to 111,328.94, 166,980.09 and 31,372.91

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Solution

The fourth proportional to 111,328.94, 166,980.09 and 31,372.91 is: 47,055.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,328.94 : 166,980.09 = 31,372.91 : x
  2. Step 2: Convert to fraction form
    111,328.94/166,980.09 = 31,372.91/x
  3. Step 3: Cross multiply
    111,328.94x = 166,980.09 × 31,372.91
  4. Step 4: Simplify right side
    111,328.94x = 5,238,650,855.06
  5. Step 5: Solve for x
    x = 5,238,650,855.06/111,328.94
  6. Step 6: Final answer
    x = 47,055.61

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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.