Home / 128,401.35-192,634.83-49,494.39

Finding the Fourth Proportional to 128,401.35, 192,634.83 and 49,494.39

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Solution

The fourth proportional to 128,401.35, 192,634.83 and 49,494.39 is: 74,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,401.35 : 192,634.83 = 49,494.39 : x
  2. Step 2: Convert to fraction form
    128,401.35/192,634.83 = 49,494.39/x
  3. Step 3: Cross multiply
    128,401.35x = 192,634.83 × 49,494.39
  4. Step 4: Simplify right side
    128,401.35x = 9,534,343,403.60
  5. Step 5: Solve for x
    x = 9,534,343,403.60/128,401.35
  6. Step 6: Final answer
    x = 74,254.23

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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.