Home / 94,661.68-142,090.80-69,729.76

Finding the Fourth Proportional to 94,661.68, 142,090.80 and 69,729.76

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Solution

The fourth proportional to 94,661.68, 142,090.80 and 69,729.76 is: 104,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,661.68 : 142,090.80 = 69,729.76 : x
  2. Step 2: Convert to fraction form
    94,661.68/142,090.80 = 69,729.76/x
  3. Step 3: Cross multiply
    94,661.68x = 142,090.80 × 69,729.76
  4. Step 4: Simplify right side
    94,661.68x = 9,907,957,382.21
  5. Step 5: Solve for x
    x = 9,907,957,382.21/94,661.68
  6. Step 6: Final answer
    x = 104,667.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.