Home / 105,354.49-145,388.26-57,608.18

Finding the Fourth Proportional to 105,354.49, 145,388.26 and 57,608.18

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Solution

The fourth proportional to 105,354.49, 145,388.26 and 57,608.18 is: 79,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,354.49 : 145,388.26 = 57,608.18 : x
  2. Step 2: Convert to fraction form
    105,354.49/145,388.26 = 57,608.18/x
  3. Step 3: Cross multiply
    105,354.49x = 145,388.26 × 57,608.18
  4. Step 4: Simplify right side
    105,354.49x = 8,375,553,051.97
  5. Step 5: Solve for x
    x = 8,375,553,051.97/105,354.49
  6. Step 6: Final answer
    x = 79,498.78

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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.