Home / 105,514,172.26-145,617,635.64-66,389,485.84

Finding the Fourth Proportional to 105,514,172.26, 145,617,635.64 and 66,389,485.84

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Solution

The fourth proportional to 105,514,172.26, 145,617,635.64 and 66,389,485.84 is: 91,622,573.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,514,172.26 : 145,617,635.64 = 66,389,485.84 : x
  2. Step 2: Convert to fraction form
    105,514,172.26/145,617,635.64 = 66,389,485.84/x
  3. Step 3: Cross multiply
    105,514,172.26x = 145,617,635.64 × 66,389,485.84
  4. Step 4: Simplify right side
    105,514,172.26x = 9,667,479,959,376,058
  5. Step 5: Solve for x
    x = 9,667,479,959,376,058/105,514,172.26
  6. Step 6: Final answer
    x = 91,622,573.08

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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.