Home / 148,845.34-205,405.75-80,861.77

Finding the Fourth Proportional to 148,845.34, 205,405.75 and 80,861.77

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Solution

The fourth proportional to 148,845.34, 205,405.75 and 80,861.77 is: 111,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,845.34 : 205,405.75 = 80,861.77 : x
  2. Step 2: Convert to fraction form
    148,845.34/205,405.75 = 80,861.77/x
  3. Step 3: Cross multiply
    148,845.34x = 205,405.75 × 80,861.77
  4. Step 4: Simplify right side
    148,845.34x = 16,609,472,513.18
  5. Step 5: Solve for x
    x = 16,609,472,513.18/148,845.34
  6. Step 6: Final answer
    x = 111,588.80

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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.