Home / 131,771.95-181,845.36-71,342.59

Finding the Fourth Proportional to 131,771.95, 181,845.36 and 71,342.59

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Solution

The fourth proportional to 131,771.95, 181,845.36 and 71,342.59 is: 98,452.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,771.95 : 181,845.36 = 71,342.59 : x
  2. Step 2: Convert to fraction form
    131,771.95/181,845.36 = 71,342.59/x
  3. Step 3: Cross multiply
    131,771.95x = 181,845.36 × 71,342.59
  4. Step 4: Simplify right side
    131,771.95x = 12,973,318,961.88
  5. Step 5: Solve for x
    x = 12,973,318,961.88/131,771.95
  6. Step 6: Final answer
    x = 98,452.81

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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.