Home / 148,840.96-205,399.04-81,771.52

Finding the Fourth Proportional to 148,840.96, 205,399.04 and 81,771.52

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Solution

The fourth proportional to 148,840.96, 205,399.04 and 81,771.52 is: 112,843.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,840.96 : 205,399.04 = 81,771.52 : x
  2. Step 2: Convert to fraction form
    148,840.96/205,399.04 = 81,771.52/x
  3. Step 3: Cross multiply
    148,840.96x = 205,399.04 × 81,771.52
  4. Step 4: Simplify right side
    148,840.96x = 16,795,791,707.34
  5. Step 5: Solve for x
    x = 16,795,791,707.34/148,840.96
  6. Step 6: Final answer
    x = 112,843.88

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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.