Home / 123,196.30-170,010.75-66,607.54

Finding the Fourth Proportional to 123,196.30, 170,010.75 and 66,607.54

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Solution

The fourth proportional to 123,196.30, 170,010.75 and 66,607.54 is: 91,918.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,196.30 : 170,010.75 = 66,607.54 : x
  2. Step 2: Convert to fraction form
    123,196.30/170,010.75 = 66,607.54/x
  3. Step 3: Cross multiply
    123,196.30x = 170,010.75 × 66,607.54
  4. Step 4: Simplify right side
    123,196.30x = 11,323,997,831.06
  5. Step 5: Solve for x
    x = 11,323,997,831.06/123,196.30
  6. Step 6: Final answer
    x = 91,918.33

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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.