Home / 111,942.30-167,913.45-99,695.10

Finding the Fourth Proportional to 111,942.30, 167,913.45 and 99,695.10

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Solution

The fourth proportional to 111,942.30, 167,913.45 and 99,695.10 is: 149,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,942.30 : 167,913.45 = 99,695.10 : x
  2. Step 2: Convert to fraction form
    111,942.30/167,913.45 = 99,695.10/x
  3. Step 3: Cross multiply
    111,942.30x = 167,913.45 × 99,695.10
  4. Step 4: Simplify right side
    111,942.30x = 16,740,148,189.10
  5. Step 5: Solve for x
    x = 16,740,148,189.10/111,942.30
  6. Step 6: Final answer
    x = 149,542.65

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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.