Home / 135,965.40-203,867.10-83,412.60

Finding the Fourth Proportional to 135,965.40, 203,867.10 and 83,412.60

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Solution

The fourth proportional to 135,965.40, 203,867.10 and 83,412.60 is: 125,069.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,965.40 : 203,867.10 = 83,412.60 : x
  2. Step 2: Convert to fraction form
    135,965.40/203,867.10 = 83,412.60/x
  3. Step 3: Cross multiply
    135,965.40x = 203,867.10 × 83,412.60
  4. Step 4: Simplify right side
    135,965.40x = 17,005,084,865.46
  5. Step 5: Solve for x
    x = 17,005,084,865.46/135,965.40
  6. Step 6: Final answer
    x = 125,069.21

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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.