Home / 105,067,664.40-157,388,920.20-72,756,051.60

Finding the Fourth Proportional to 105,067,664.40, 157,388,920.20 and 72,756,051.60

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Solution

The fourth proportional to 105,067,664.40, 157,388,920.20 and 72,756,051.60 is: 108,986,874.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,067,664.40 : 157,388,920.20 = 72,756,051.60 : x
  2. Step 2: Convert to fraction form
    105,067,664.40/157,388,920.20 = 72,756,051.60/x
  3. Step 3: Cross multiply
    105,067,664.40x = 157,388,920.20 × 72,756,051.60
  4. Step 4: Simplify right side
    105,067,664.40x = 11,450,996,399,339,480
  5. Step 5: Solve for x
    x = 11,450,996,399,339,480/105,067,664.40
  6. Step 6: Final answer
    x = 108,986,874.93

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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.