Home / 105,736.66-145,918.46-57,989.59

Finding the Fourth Proportional to 105,736.66, 145,918.46 and 57,989.59

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Solution

The fourth proportional to 105,736.66, 145,918.46 and 57,989.59 is: 80,026.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,736.66 : 145,918.46 = 57,989.59 : x
  2. Step 2: Convert to fraction form
    105,736.66/145,918.46 = 57,989.59/x
  3. Step 3: Cross multiply
    105,736.66x = 145,918.46 × 57,989.59
  4. Step 4: Simplify right side
    105,736.66x = 8,461,751,668.83
  5. Step 5: Solve for x
    x = 8,461,751,668.83/105,736.66
  6. Step 6: Final answer
    x = 80,026.66

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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.