Home / 158,928.40-238,198.20-70,087.60

Finding the Fourth Proportional to 158,928.40, 238,198.20 and 70,087.60

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Solution

The fourth proportional to 158,928.40, 238,198.20 and 70,087.60 is: 105,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,928.40 : 238,198.20 = 70,087.60 : x
  2. Step 2: Convert to fraction form
    158,928.40/238,198.20 = 70,087.60/x
  3. Step 3: Cross multiply
    158,928.40x = 238,198.20 × 70,087.60
  4. Step 4: Simplify right side
    158,928.40x = 16,694,740,162.32
  5. Step 5: Solve for x
    x = 16,694,740,162.32/158,928.40
  6. Step 6: Final answer
    x = 105,045.67

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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.