Home / 111,642.68-167,237.76-51,585.78

Finding the Fourth Proportional to 111,642.68, 167,237.76 and 51,585.78

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Solution

The fourth proportional to 111,642.68, 167,237.76 and 51,585.78 is: 77,274.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,642.68 : 167,237.76 = 51,585.78 : x
  2. Step 2: Convert to fraction form
    111,642.68/167,237.76 = 51,585.78/x
  3. Step 3: Cross multiply
    111,642.68x = 167,237.76 × 51,585.78
  4. Step 4: Simplify right side
    111,642.68x = 8,627,090,295.05
  5. Step 5: Solve for x
    x = 8,627,090,295.05/111,642.68
  6. Step 6: Final answer
    x = 77,274.12

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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.