Home / 120,996.76-181,458.68-57,784.28

Finding the Fourth Proportional to 120,996.76, 181,458.68 and 57,784.28

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Solution

The fourth proportional to 120,996.76, 181,458.68 and 57,784.28 is: 86,659.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,996.76 : 181,458.68 = 57,784.28 : x
  2. Step 2: Convert to fraction form
    120,996.76/181,458.68 = 57,784.28/x
  3. Step 3: Cross multiply
    120,996.76x = 181,458.68 × 57,784.28
  4. Step 4: Simplify right side
    120,996.76x = 10,485,459,173.55
  5. Step 5: Solve for x
    x = 10,485,459,173.55/120,996.76
  6. Step 6: Final answer
    x = 86,659.01

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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.