Home / 128,282.94-192,442.50-39,543.66

Finding the Fourth Proportional to 128,282.94, 192,442.50 and 39,543.66

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Solution

The fourth proportional to 128,282.94, 192,442.50 and 39,543.66 is: 59,321.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,282.94 : 192,442.50 = 39,543.66 : x
  2. Step 2: Convert to fraction form
    128,282.94/192,442.50 = 39,543.66/x
  3. Step 3: Cross multiply
    128,282.94x = 192,442.50 × 39,543.66
  4. Step 4: Simplify right side
    128,282.94x = 7,609,880,789.55
  5. Step 5: Solve for x
    x = 7,609,880,789.55/128,282.94
  6. Step 6: Final answer
    x = 59,321.07

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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.