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Finding the Fourth Proportional to 128,056.77, 192,035.91 and 88,493.94

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Solution

The fourth proportional to 128,056.77, 192,035.91 and 88,493.94 is: 132,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,056.77 : 192,035.91 = 88,493.94 : x
  2. Step 2: Convert to fraction form
    128,056.77/192,035.91 = 88,493.94/x
  3. Step 3: Cross multiply
    128,056.77x = 192,035.91 × 88,493.94
  4. Step 4: Simplify right side
    128,056.77x = 16,994,014,297.39
  5. Step 5: Solve for x
    x = 16,994,014,297.39/128,056.77
  6. Step 6: Final answer
    x = 132,706.88

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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.