Home / 128,849.28-178,056.04-96,962.64

Finding the Fourth Proportional to 128,849.28, 178,056.04 and 96,962.64

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Solution

The fourth proportional to 128,849.28, 178,056.04 and 96,962.64 is: 133,992.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,849.28 : 178,056.04 = 96,962.64 : x
  2. Step 2: Convert to fraction form
    128,849.28/178,056.04 = 96,962.64/x
  3. Step 3: Cross multiply
    128,849.28x = 178,056.04 × 96,962.64
  4. Step 4: Simplify right side
    128,849.28x = 17,264,783,706.35
  5. Step 5: Solve for x
    x = 17,264,783,706.35/128,849.28
  6. Step 6: Final answer
    x = 133,992.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.