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Finding the Fourth Proportional to 192,087.16, 264,763.02 and 128,401.72

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Solution

The fourth proportional to 192,087.16, 264,763.02 and 128,401.72 is: 176,982.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,087.16 : 264,763.02 = 128,401.72 : x
  2. Step 2: Convert to fraction form
    192,087.16/264,763.02 = 128,401.72/x
  3. Step 3: Cross multiply
    192,087.16x = 264,763.02 × 128,401.72
  4. Step 4: Simplify right side
    192,087.16x = 33,996,027,160.39
  5. Step 5: Solve for x
    x = 33,996,027,160.39/192,087.16
  6. Step 6: Final answer
    x = 176,982.30

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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.