Home / 142,501.11-196,619.13-85,131.33

Finding the Fourth Proportional to 142,501.11, 196,619.13 and 85,131.33

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Solution

The fourth proportional to 142,501.11, 196,619.13 and 85,131.33 is: 117,461.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,501.11 : 196,619.13 = 85,131.33 : x
  2. Step 2: Convert to fraction form
    142,501.11/196,619.13 = 85,131.33/x
  3. Step 3: Cross multiply
    142,501.11x = 196,619.13 × 85,131.33
  4. Step 4: Simplify right side
    142,501.11x = 16,738,448,040.34
  5. Step 5: Solve for x
    x = 16,738,448,040.34/142,501.11
  6. Step 6: Final answer
    x = 117,461.88

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.