Home / 123,196.36-170,010.96-66,607.74

Finding the Fourth Proportional to 123,196.36, 170,010.96 and 66,607.74

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Solution

The fourth proportional to 123,196.36, 170,010.96 and 66,607.74 is: 91,918.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,196.36 : 170,010.96 = 66,607.74 : x
  2. Step 2: Convert to fraction form
    123,196.36/170,010.96 = 66,607.74/x
  3. Step 3: Cross multiply
    123,196.36x = 170,010.96 × 66,607.74
  4. Step 4: Simplify right side
    123,196.36x = 11,324,045,820.83
  5. Step 5: Solve for x
    x = 11,324,045,820.83/123,196.36
  6. Step 6: Final answer
    x = 91,918.67

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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.