Home / 105,204.30-145,179.62-57,457.84

Finding the Fourth Proportional to 105,204.30, 145,179.62 and 57,457.84

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Solution

The fourth proportional to 105,204.30, 145,179.62 and 57,457.84 is: 79,290.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,204.30 : 145,179.62 = 57,457.84 : x
  2. Step 2: Convert to fraction form
    105,204.30/145,179.62 = 57,457.84/x
  3. Step 3: Cross multiply
    105,204.30x = 145,179.62 × 57,457.84
  4. Step 4: Simplify right side
    105,204.30x = 8,341,707,377.22
  5. Step 5: Solve for x
    x = 8,341,707,377.22/105,204.30
  6. Step 6: Final answer
    x = 79,290.56

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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.