Home / 111,127.50-166,691.34-28,021.50

Finding the Fourth Proportional to 111,127.50, 166,691.34 and 28,021.50

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Solution

The fourth proportional to 111,127.50, 166,691.34 and 28,021.50 is: 42,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,127.50 : 166,691.34 = 28,021.50 : x
  2. Step 2: Convert to fraction form
    111,127.50/166,691.34 = 28,021.50/x
  3. Step 3: Cross multiply
    111,127.50x = 166,691.34 × 28,021.50
  4. Step 4: Simplify right side
    111,127.50x = 4,670,941,383.81
  5. Step 5: Solve for x
    x = 4,670,941,383.81/111,127.50
  6. Step 6: Final answer
    x = 42,032.27

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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.