Home / 105,608.25-145,739.48-57,861.81

Finding the Fourth Proportional to 105,608.25, 145,739.48 and 57,861.81

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Solution

The fourth proportional to 105,608.25, 145,739.48 and 57,861.81 is: 79,849.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,608.25 : 145,739.48 = 57,861.81 : x
  2. Step 2: Convert to fraction form
    105,608.25/145,739.48 = 57,861.81/x
  3. Step 3: Cross multiply
    105,608.25x = 145,739.48 × 57,861.81
  4. Step 4: Simplify right side
    105,608.25x = 8,432,749,811.95
  5. Step 5: Solve for x
    x = 8,432,749,811.95/105,608.25
  6. Step 6: Final answer
    x = 79,849.35

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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.