Home / 190,945.68-286,459.82-72,619.26

Finding the Fourth Proportional to 190,945.68, 286,459.82 and 72,619.26

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Solution

The fourth proportional to 190,945.68, 286,459.82 and 72,619.26 is: 108,944.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,945.68 : 286,459.82 = 72,619.26 : x
  2. Step 2: Convert to fraction form
    190,945.68/286,459.82 = 72,619.26/x
  3. Step 3: Cross multiply
    190,945.68x = 286,459.82 × 72,619.26
  4. Step 4: Simplify right side
    190,945.68x = 20,802,500,148.13
  5. Step 5: Solve for x
    x = 20,802,500,148.13/190,945.68
  6. Step 6: Final answer
    x = 108,944.60

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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.