Home / 105,067,659.40-157,388,912.70-72,756,046.60

Finding the Fourth Proportional to 105,067,659.40, 157,388,912.70 and 72,756,046.60

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Solution

The fourth proportional to 105,067,659.40, 157,388,912.70 and 72,756,046.60 is: 108,986,867.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,067,659.40 : 157,388,912.70 = 72,756,046.60 : x
  2. Step 2: Convert to fraction form
    105,067,659.40/157,388,912.70 = 72,756,046.60/x
  3. Step 3: Cross multiply
    105,067,659.40x = 157,388,912.70 × 72,756,046.60
  4. Step 4: Simplify right side
    105,067,659.40x = 11,450,995,066,724,530
  5. Step 5: Solve for x
    x = 11,450,995,066,724,530/105,067,659.40
  6. Step 6: Final answer
    x = 108,986,867.43

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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.