Home / 115,376.20-173,064.30-70,858.60

Finding the Fourth Proportional to 115,376.20, 173,064.30 and 70,858.60

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Solution

The fourth proportional to 115,376.20, 173,064.30 and 70,858.60 is: 106,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,376.20 : 173,064.30 = 70,858.60 : x
  2. Step 2: Convert to fraction form
    115,376.20/173,064.30 = 70,858.60/x
  3. Step 3: Cross multiply
    115,376.20x = 173,064.30 × 70,858.60
  4. Step 4: Simplify right side
    115,376.20x = 12,263,094,007.98
  5. Step 5: Solve for x
    x = 12,263,094,007.98/115,376.20
  6. Step 6: Final answer
    x = 106,287.90

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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.