Home / 128,255.98-192,374.84-39,500.23

Finding the Fourth Proportional to 128,255.98, 192,374.84 and 39,500.23

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Solution

The fourth proportional to 128,255.98, 192,374.84 and 39,500.23 is: 59,247.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,255.98 : 192,374.84 = 39,500.23 : x
  2. Step 2: Convert to fraction form
    128,255.98/192,374.84 = 39,500.23/x
  3. Step 3: Cross multiply
    128,255.98x = 192,374.84 × 39,500.23
  4. Step 4: Simplify right side
    128,255.98x = 7,598,850,426.21
  5. Step 5: Solve for x
    x = 7,598,850,426.21/128,255.98
  6. Step 6: Final answer
    x = 59,247.53

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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.