Home / 128,407.35-192,643.83-49,500.39

Finding the Fourth Proportional to 128,407.35, 192,643.83 and 49,500.39

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Solution

The fourth proportional to 128,407.35, 192,643.83 and 49,500.39 is: 74,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,407.35 : 192,643.83 = 49,500.39 : x
  2. Step 2: Convert to fraction form
    128,407.35/192,643.83 = 49,500.39/x
  3. Step 3: Cross multiply
    128,407.35x = 192,643.83 × 49,500.39
  4. Step 4: Simplify right side
    128,407.35x = 9,535,944,716.09
  5. Step 5: Solve for x
    x = 9,535,944,716.09/128,407.35
  6. Step 6: Final answer
    x = 74,263.23

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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.