Home / 128,263.04-192,377.52-39,519.44

Finding the Fourth Proportional to 128,263.04, 192,377.52 and 39,519.44

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Solution

The fourth proportional to 128,263.04, 192,377.52 and 39,519.44 is: 59,273.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,263.04 : 192,377.52 = 39,519.44 : x
  2. Step 2: Convert to fraction form
    128,263.04/192,377.52 = 39,519.44/x
  3. Step 3: Cross multiply
    128,263.04x = 192,377.52 × 39,519.44
  4. Step 4: Simplify right side
    128,263.04x = 7,602,651,858.99
  5. Step 5: Solve for x
    x = 7,602,651,858.99/128,263.04
  6. Step 6: Final answer
    x = 59,273.91

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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.