Home / 117,186.09-161,726.75-66,208.19

Finding the Fourth Proportional to 117,186.09, 161,726.75 and 66,208.19

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Solution

The fourth proportional to 117,186.09, 161,726.75 and 66,208.19 is: 91,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,186.09 : 161,726.75 = 66,208.19 : x
  2. Step 2: Convert to fraction form
    117,186.09/161,726.75 = 66,208.19/x
  3. Step 3: Cross multiply
    117,186.09x = 161,726.75 × 66,208.19
  4. Step 4: Simplify right side
    117,186.09x = 10,707,634,686.90
  5. Step 5: Solve for x
    x = 10,707,634,686.90/117,186.09
  6. Step 6: Final answer
    x = 91,372.91

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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.