Home / 117,001.09-161,447.63-66,010.85

Finding the Fourth Proportional to 117,001.09, 161,447.63 and 66,010.85

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Solution

The fourth proportional to 117,001.09, 161,447.63 and 66,010.85 is: 91,087.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,001.09 : 161,447.63 = 66,010.85 : x
  2. Step 2: Convert to fraction form
    117,001.09/161,447.63 = 66,010.85/x
  3. Step 3: Cross multiply
    117,001.09x = 161,447.63 × 66,010.85
  4. Step 4: Simplify right side
    117,001.09x = 10,657,295,126.23
  5. Step 5: Solve for x
    x = 10,657,295,126.23/117,001.09
  6. Step 6: Final answer
    x = 91,087.14

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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.