Home / 128,074.08-192,136.02-49,182.52

Finding the Fourth Proportional to 128,074.08, 192,136.02 and 49,182.52

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Solution

The fourth proportional to 128,074.08, 192,136.02 and 49,182.52 is: 73,783.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,074.08 : 192,136.02 = 49,182.52 : x
  2. Step 2: Convert to fraction form
    128,074.08/192,136.02 = 49,182.52/x
  3. Step 3: Cross multiply
    128,074.08x = 192,136.02 × 49,182.52
  4. Step 4: Simplify right side
    128,074.08x = 9,449,733,646.37
  5. Step 5: Solve for x
    x = 9,449,733,646.37/128,074.08
  6. Step 6: Final answer
    x = 73,783.34

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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.