Home / 105,891,078.06-146,084,359.01-66,129,579.50

Finding the Fourth Proportional to 105,891,078.06, 146,084,359.01 and 66,129,579.50

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Solution

The fourth proportional to 105,891,078.06, 146,084,359.01 and 66,129,579.50 is: 91,230,511.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,891,078.06 : 146,084,359.01 = 66,129,579.50 : x
  2. Step 2: Convert to fraction form
    105,891,078.06/146,084,359.01 = 66,129,579.50/x
  3. Step 3: Cross multiply
    105,891,078.06x = 146,084,359.01 × 66,129,579.50
  4. Step 4: Simplify right side
    105,891,078.06x = 9,660,497,231,797,266
  5. Step 5: Solve for x
    x = 9,660,497,231,797,266/105,891,078.06
  6. Step 6: Final answer
    x = 91,230,511.66

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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.