Home / 177,783.91-245,321.70-105,189.03

Finding the Fourth Proportional to 177,783.91, 245,321.70 and 105,189.03

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Solution

The fourth proportional to 177,783.91, 245,321.70 and 105,189.03 is: 145,148.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    177,783.91 : 245,321.70 = 105,189.03 : x
  2. Step 2: Convert to fraction form
    177,783.91/245,321.70 = 105,189.03/x
  3. Step 3: Cross multiply
    177,783.91x = 245,321.70 × 105,189.03
  4. Step 4: Simplify right side
    177,783.91x = 25,805,151,660.95
  5. Step 5: Solve for x
    x = 25,805,151,660.95/177,783.91
  6. Step 6: Final answer
    x = 145,148.97

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1.5x scale

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.