Home / 105,744.28-158,640.36-35,621.68

Finding the Fourth Proportional to 105,744.28, 158,640.36 and 35,621.68

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Solution

The fourth proportional to 105,744.28, 158,640.36 and 35,621.68 is: 53,440.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,744.28 : 158,640.36 = 35,621.68 : x
  2. Step 2: Convert to fraction form
    105,744.28/158,640.36 = 35,621.68/x
  3. Step 3: Cross multiply
    105,744.28x = 158,640.36 × 35,621.68
  4. Step 4: Simplify right side
    105,744.28x = 5,651,036,139.00
  5. Step 5: Solve for x
    x = 5,651,036,139.00/105,744.28
  6. Step 6: Final answer
    x = 53,440.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.