Home / 131,464.86-181,458.67-77,768.54

Finding the Fourth Proportional to 131,464.86, 181,458.67 and 77,768.54

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Solution

The fourth proportional to 131,464.86, 181,458.67 and 77,768.54 is: 107,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,464.86 : 181,458.67 = 77,768.54 : x
  2. Step 2: Convert to fraction form
    131,464.86/181,458.67 = 77,768.54/x
  3. Step 3: Cross multiply
    131,464.86x = 181,458.67 × 77,768.54
  4. Step 4: Simplify right side
    131,464.86x = 14,111,775,836.24
  5. Step 5: Solve for x
    x = 14,111,775,836.24/131,464.86
  6. Step 6: Final answer
    x = 107,342.57

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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.