Home / 105,661.23-145,816.11-57,914.57

Finding the Fourth Proportional to 105,661.23, 145,816.11 and 57,914.57

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Solution

The fourth proportional to 105,661.23, 145,816.11 and 57,914.57 is: 79,924.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,661.23 : 145,816.11 = 57,914.57 : x
  2. Step 2: Convert to fraction form
    105,661.23/145,816.11 = 57,914.57/x
  3. Step 3: Cross multiply
    105,661.23x = 145,816.11 × 57,914.57
  4. Step 4: Simplify right side
    105,661.23x = 8,444,876,580.64
  5. Step 5: Solve for x
    x = 8,444,876,580.64/105,661.23
  6. Step 6: Final answer
    x = 79,924.08

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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.