Home / 185,018.22-255,325.15-100,135.29

Finding the Fourth Proportional to 185,018.22, 255,325.15 and 100,135.29

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Solution

The fourth proportional to 185,018.22, 255,325.15 and 100,135.29 is: 138,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,018.22 : 255,325.15 = 100,135.29 : x
  2. Step 2: Convert to fraction form
    185,018.22/255,325.15 = 100,135.29/x
  3. Step 3: Cross multiply
    185,018.22x = 255,325.15 × 100,135.29
  4. Step 4: Simplify right side
    185,018.22x = 25,567,057,939.54
  5. Step 5: Solve for x
    x = 25,567,057,939.54/185,018.22
  6. Step 6: Final answer
    x = 138,186.70

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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.