Home / 111,227.04-166,986.72-66,330.72

Finding the Fourth Proportional to 111,227.04, 166,986.72 and 66,330.72

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Solution

The fourth proportional to 111,227.04, 166,986.72 and 66,330.72 is: 99,583.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,227.04 : 166,986.72 = 66,330.72 : x
  2. Step 2: Convert to fraction form
    111,227.04/166,986.72 = 66,330.72/x
  3. Step 3: Cross multiply
    111,227.04x = 166,986.72 × 66,330.72
  4. Step 4: Simplify right side
    111,227.04x = 11,076,349,368.04
  5. Step 5: Solve for x
    x = 11,076,349,368.04/111,227.04
  6. Step 6: Final answer
    x = 99,583.24

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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.