Home / 115,121.08-172,636.26-55,939.24

Finding the Fourth Proportional to 115,121.08, 172,636.26 and 55,939.24

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Solution

The fourth proportional to 115,121.08, 172,636.26 and 55,939.24 is: 83,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,121.08 : 172,636.26 = 55,939.24 : x
  2. Step 2: Convert to fraction form
    115,121.08/172,636.26 = 55,939.24/x
  3. Step 3: Cross multiply
    115,121.08x = 172,636.26 × 55,939.24
  4. Step 4: Simplify right side
    115,121.08x = 9,657,141,180.84
  5. Step 5: Solve for x
    x = 9,657,141,180.84/115,121.08
  6. Step 6: Final answer
    x = 83,886.82

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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.