Home / 105,047.20-145,153.92-79,852.96

Finding the Fourth Proportional to 105,047.20, 145,153.92 and 79,852.96

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Solution

The fourth proportional to 105,047.20, 145,153.92 and 79,852.96 is: 110,340.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,047.20 : 145,153.92 = 79,852.96 : x
  2. Step 2: Convert to fraction form
    105,047.20/145,153.92 = 79,852.96/x
  3. Step 3: Cross multiply
    105,047.20x = 145,153.92 × 79,852.96
  4. Step 4: Simplify right side
    105,047.20x = 11,590,970,167.60
  5. Step 5: Solve for x
    x = 11,590,970,167.60/105,047.20
  6. Step 6: Final answer
    x = 110,340.59

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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.