Home / 128,280.90-192,403.23-44,039.58

Finding the Fourth Proportional to 128,280.90, 192,403.23 and 44,039.58

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Solution

The fourth proportional to 128,280.90, 192,403.23 and 44,039.58 is: 66,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,280.90 : 192,403.23 = 44,039.58 : x
  2. Step 2: Convert to fraction form
    128,280.90/192,403.23 = 44,039.58/x
  3. Step 3: Cross multiply
    128,280.90x = 192,403.23 × 44,039.58
  4. Step 4: Simplify right side
    128,280.90x = 8,473,357,439.84
  5. Step 5: Solve for x
    x = 8,473,357,439.84/128,280.90
  6. Step 6: Final answer
    x = 66,053.15

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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.