Home / 105,891,079.31-146,084,360.73-66,129,580.75

Finding the Fourth Proportional to 105,891,079.31, 146,084,360.73 and 66,129,580.75

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Solution

The fourth proportional to 105,891,079.31, 146,084,360.73 and 66,129,580.75 is: 91,230,513.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,891,079.31 : 146,084,360.73 = 66,129,580.75 : x
  2. Step 2: Convert to fraction form
    105,891,079.31/146,084,360.73 = 66,129,580.75/x
  3. Step 3: Cross multiply
    105,891,079.31x = 146,084,360.73 × 66,129,580.75
  4. Step 4: Simplify right side
    105,891,079.31x = 9,660,497,528,476,242
  5. Step 5: Solve for x
    x = 9,660,497,528,476,242/105,891,079.31
  6. Step 6: Final answer
    x = 91,230,513.39

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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.