Home / 145,619.94-200,900.66-85,171.26

Finding the Fourth Proportional to 145,619.94, 200,900.66 and 85,171.26

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Solution

The fourth proportional to 145,619.94, 200,900.66 and 85,171.26 is: 117,504.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,619.94 : 200,900.66 = 85,171.26 : x
  2. Step 2: Convert to fraction form
    145,619.94/200,900.66 = 85,171.26/x
  3. Step 3: Cross multiply
    145,619.94x = 200,900.66 × 85,171.26
  4. Step 4: Simplify right side
    145,619.94x = 17,110,962,347.03
  5. Step 5: Solve for x
    x = 17,110,962,347.03/145,619.94
  6. Step 6: Final answer
    x = 117,504.25

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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.