Home / 124,172-171,357.36-67,583.78

Finding the Fourth Proportional to 124,172, 171,357.36 and 67,583.78

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Solution

The fourth proportional to 124,172, 171,357.36 and 67,583.78 is: 93,265.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,172 : 171,357.36 = 67,583.78 : x
  2. Step 2: Convert to fraction form
    124,172/171,357.36 = 67,583.78/x
  3. Step 3: Cross multiply
    124,172x = 171,357.36 × 67,583.78
  4. Step 4: Simplify right side
    124,172x = 11,580,978,119.62
  5. Step 5: Solve for x
    x = 11,580,978,119.62/124,172
  6. Step 6: Final answer
    x = 93,265.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.