Home / 123,272.21-170,115.57-66,683.58

Finding the Fourth Proportional to 123,272.21, 170,115.57 and 66,683.58

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Solution

The fourth proportional to 123,272.21, 170,115.57 and 66,683.58 is: 92,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,272.21 : 170,115.57 = 66,683.58 : x
  2. Step 2: Convert to fraction form
    123,272.21/170,115.57 = 66,683.58/x
  3. Step 3: Cross multiply
    123,272.21x = 170,115.57 × 66,683.58
  4. Step 4: Simplify right side
    123,272.21x = 11,343,915,221.34
  5. Step 5: Solve for x
    x = 11,343,915,221.34/123,272.21
  6. Step 6: Final answer
    x = 92,023.30

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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.