Home / 123,741.56-170,762.46-67,151.72

Finding the Fourth Proportional to 123,741.56, 170,762.46 and 67,151.72

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Solution

The fourth proportional to 123,741.56, 170,762.46 and 67,151.72 is: 92,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,741.56 : 170,762.46 = 67,151.72 : x
  2. Step 2: Convert to fraction form
    123,741.56/170,762.46 = 67,151.72/x
  3. Step 3: Cross multiply
    123,741.56x = 170,762.46 × 67,151.72
  4. Step 4: Simplify right side
    123,741.56x = 11,466,992,900.43
  5. Step 5: Solve for x
    x = 11,466,992,900.43/123,741.56
  6. Step 6: Final answer
    x = 92,668.89

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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.