Home / 123,257.21-170,094.87-66,668.58

Finding the Fourth Proportional to 123,257.21, 170,094.87 and 66,668.58

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Solution

The fourth proportional to 123,257.21, 170,094.87 and 66,668.58 is: 92,002.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,257.21 : 170,094.87 = 66,668.58 : x
  2. Step 2: Convert to fraction form
    123,257.21/170,094.87 = 66,668.58/x
  3. Step 3: Cross multiply
    123,257.21x = 170,094.87 × 66,668.58
  4. Step 4: Simplify right side
    123,257.21x = 11,339,983,448.18
  5. Step 5: Solve for x
    x = 11,339,983,448.18/123,257.21
  6. Step 6: Final answer
    x = 92,002.60

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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.