Home / 111,537.30-167,362.65-74,123.40

Finding the Fourth Proportional to 111,537.30, 167,362.65 and 74,123.40

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Solution

The fourth proportional to 111,537.30, 167,362.65 and 74,123.40 is: 111,222.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,537.30 : 167,362.65 = 74,123.40 : x
  2. Step 2: Convert to fraction form
    111,537.30/167,362.65 = 74,123.40/x
  3. Step 3: Cross multiply
    111,537.30x = 167,362.65 × 74,123.40
  4. Step 4: Simplify right side
    111,537.30x = 12,405,488,651.01
  5. Step 5: Solve for x
    x = 12,405,488,651.01/111,537.30
  6. Step 6: Final answer
    x = 111,222.78

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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.