Home / 128,039.20-192,058.80-44,941.60

Finding the Fourth Proportional to 128,039.20, 192,058.80 and 44,941.60

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Solution

The fourth proportional to 128,039.20, 192,058.80 and 44,941.60 is: 67,412.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,039.20 : 192,058.80 = 44,941.60 : x
  2. Step 2: Convert to fraction form
    128,039.20/192,058.80 = 44,941.60/x
  3. Step 3: Cross multiply
    128,039.20x = 192,058.80 × 44,941.60
  4. Step 4: Simplify right side
    128,039.20x = 8,631,429,766.08
  5. Step 5: Solve for x
    x = 8,631,429,766.08/128,039.20
  6. Step 6: Final answer
    x = 67,412.40

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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.