Home / 172,077.48-257,825.03-105,378.37

Finding the Fourth Proportional to 172,077.48, 257,825.03 and 105,378.37

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Solution

The fourth proportional to 172,077.48, 257,825.03 and 105,378.37 is: 157,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,077.48 : 257,825.03 = 105,378.37 : x
  2. Step 2: Convert to fraction form
    172,077.48/257,825.03 = 105,378.37/x
  3. Step 3: Cross multiply
    172,077.48x = 257,825.03 × 105,378.37
  4. Step 4: Simplify right side
    172,077.48x = 27,169,180,235.15
  5. Step 5: Solve for x
    x = 27,169,180,235.15/172,077.48
  6. Step 6: Final answer
    x = 157,889.23

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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.