Home / 128,539.63-192,558.34-88,551.55

Finding the Fourth Proportional to 128,539.63, 192,558.34 and 88,551.55

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Solution

The fourth proportional to 128,539.63, 192,558.34 and 88,551.55 is: 132,654.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,539.63 : 192,558.34 = 88,551.55 : x
  2. Step 2: Convert to fraction form
    128,539.63/192,558.34 = 88,551.55/x
  3. Step 3: Cross multiply
    128,539.63x = 192,558.34 × 88,551.55
  4. Step 4: Simplify right side
    128,539.63x = 17,051,339,472.43
  5. Step 5: Solve for x
    x = 17,051,339,472.43/128,539.63
  6. Step 6: Final answer
    x = 132,654.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.