Home / 135,015.94-186,323.56-74,585.32

Finding the Fourth Proportional to 135,015.94, 186,323.56 and 74,585.32

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Solution

The fourth proportional to 135,015.94, 186,323.56 and 74,585.32 is: 102,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,015.94 : 186,323.56 = 74,585.32 : x
  2. Step 2: Convert to fraction form
    135,015.94/186,323.56 = 74,585.32/x
  3. Step 3: Cross multiply
    135,015.94x = 186,323.56 × 74,585.32
  4. Step 4: Simplify right side
    135,015.94x = 13,897,002,346.14
  5. Step 5: Solve for x
    x = 13,897,002,346.14/135,015.94
  6. Step 6: Final answer
    x = 102,928.60

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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.