Home / 123,873.26-170,946-67,284.62

Finding the Fourth Proportional to 123,873.26, 170,946 and 67,284.62

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Solution

The fourth proportional to 123,873.26, 170,946 and 67,284.62 is: 92,853.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,873.26 : 170,946 = 67,284.62 : x
  2. Step 2: Convert to fraction form
    123,873.26/170,946 = 67,284.62/x
  3. Step 3: Cross multiply
    123,873.26x = 170,946 × 67,284.62
  4. Step 4: Simplify right side
    123,873.26x = 11,502,036,650.52
  5. Step 5: Solve for x
    x = 11,502,036,650.52/123,873.26
  6. Step 6: Final answer
    x = 92,853.27

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1.5x scale

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.