Home / 100,890.30-151,323.30-41,719.80

Finding the Fourth Proportional to 100,890.30, 151,323.30 and 41,719.80

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Solution

The fourth proportional to 100,890.30, 151,323.30 and 41,719.80 is: 62,574.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890.30 : 151,323.30 = 41,719.80 : x
  2. Step 2: Convert to fraction form
    100,890.30/151,323.30 = 41,719.80/x
  3. Step 3: Cross multiply
    100,890.30x = 151,323.30 × 41,719.80
  4. Step 4: Simplify right side
    100,890.30x = 6,313,177,811.34
  5. Step 5: Solve for x
    x = 6,313,177,811.34/100,890.30
  6. Step 6: Final answer
    x = 62,574.68

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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.