Home / 131,840.11-181,939.26-71,411.93

Finding the Fourth Proportional to 131,840.11, 181,939.26 and 71,411.93

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Solution

The fourth proportional to 131,840.11, 181,939.26 and 71,411.93 is: 98,548.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,840.11 : 181,939.26 = 71,411.93 : x
  2. Step 2: Convert to fraction form
    131,840.11/181,939.26 = 71,411.93/x
  3. Step 3: Cross multiply
    131,840.11x = 181,939.26 × 71,411.93
  4. Step 4: Simplify right side
    131,840.11x = 12,992,633,739.74
  5. Step 5: Solve for x
    x = 12,992,633,739.74/131,840.11
  6. Step 6: Final answer
    x = 98,548.42

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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.