Home / 128,360.03-192,468.94-52,511.84

Finding the Fourth Proportional to 128,360.03, 192,468.94 and 52,511.84

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Solution

The fourth proportional to 128,360.03, 192,468.94 and 52,511.84 is: 78,738.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,360.03 : 192,468.94 = 52,511.84 : x
  2. Step 2: Convert to fraction form
    128,360.03/192,468.94 = 52,511.84/x
  3. Step 3: Cross multiply
    128,360.03x = 192,468.94 × 52,511.84
  4. Step 4: Simplify right side
    128,360.03x = 10,106,897,088.63
  5. Step 5: Solve for x
    x = 10,106,897,088.63/128,360.03
  6. Step 6: Final answer
    x = 78,738.66

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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.