Home / 111,011.31-166,571.64-51,838.38

Finding the Fourth Proportional to 111,011.31, 166,571.64 and 51,838.38

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Solution

The fourth proportional to 111,011.31, 166,571.64 and 51,838.38 is: 77,783.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,011.31 : 166,571.64 = 51,838.38 : x
  2. Step 2: Convert to fraction form
    111,011.31/166,571.64 = 51,838.38/x
  3. Step 3: Cross multiply
    111,011.31x = 166,571.64 × 51,838.38
  4. Step 4: Simplify right side
    111,011.31x = 8,634,803,971.54
  5. Step 5: Solve for x
    x = 8,634,803,971.54/111,011.31
  6. Step 6: Final answer
    x = 77,783.10

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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.