Home / 131,462.86-181,455.91-77,766.54

Finding the Fourth Proportional to 131,462.86, 181,455.91 and 77,766.54

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Solution

The fourth proportional to 131,462.86, 181,455.91 and 77,766.54 is: 107,339.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,462.86 : 181,455.91 = 77,766.54 : x
  2. Step 2: Convert to fraction form
    131,462.86/181,455.91 = 77,766.54/x
  3. Step 3: Cross multiply
    131,462.86x = 181,455.91 × 77,766.54
  4. Step 4: Simplify right side
    131,462.86x = 14,111,198,283.25
  5. Step 5: Solve for x
    x = 14,111,198,283.25/131,462.86
  6. Step 6: Final answer
    x = 107,339.81

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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.