Home / 120,897.36-181,375.20-76,574.16

Finding the Fourth Proportional to 120,897.36, 181,375.20 and 76,574.16

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Solution

The fourth proportional to 120,897.36, 181,375.20 and 76,574.16 is: 114,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,897.36 : 181,375.20 = 76,574.16 : x
  2. Step 2: Convert to fraction form
    120,897.36/181,375.20 = 76,574.16/x
  3. Step 3: Cross multiply
    120,897.36x = 181,375.20 × 76,574.16
  4. Step 4: Simplify right side
    120,897.36x = 13,888,653,584.83
  5. Step 5: Solve for x
    x = 13,888,653,584.83/120,897.36
  6. Step 6: Final answer
    x = 114,879.71

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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.