Home / 135,412.94-186,867.56-74,982.27

Finding the Fourth Proportional to 135,412.94, 186,867.56 and 74,982.27

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Solution

The fourth proportional to 135,412.94, 186,867.56 and 74,982.27 is: 103,474.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,412.94 : 186,867.56 = 74,982.27 : x
  2. Step 2: Convert to fraction form
    135,412.94/186,867.56 = 74,982.27/x
  3. Step 3: Cross multiply
    135,412.94x = 186,867.56 × 74,982.27
  4. Step 4: Simplify right side
    135,412.94x = 14,011,753,463.25
  5. Step 5: Solve for x
    x = 14,011,753,463.25/135,412.94
  6. Step 6: Final answer
    x = 103,474.26

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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.