Home / 135,116.32-186,441.44-76,974.60

Finding the Fourth Proportional to 135,116.32, 186,441.44 and 76,974.60

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Solution

The fourth proportional to 135,116.32, 186,441.44 and 76,974.60 is: 106,214.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,116.32 : 186,441.44 = 76,974.60 : x
  2. Step 2: Convert to fraction form
    135,116.32/186,441.44 = 76,974.60/x
  3. Step 3: Cross multiply
    135,116.32x = 186,441.44 × 76,974.60
  4. Step 4: Simplify right side
    135,116.32x = 14,351,255,267.42
  5. Step 5: Solve for x
    x = 14,351,255,267.42/135,116.32
  6. Step 6: Final answer
    x = 106,214.08

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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.