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Finding the Fourth Proportional to 128,172.72, 192,259.08 and 93,334.08

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Solution

The fourth proportional to 128,172.72, 192,259.08 and 93,334.08 is: 140,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,172.72 : 192,259.08 = 93,334.08 : x
  2. Step 2: Convert to fraction form
    128,172.72/192,259.08 = 93,334.08/x
  3. Step 3: Cross multiply
    128,172.72x = 192,259.08 × 93,334.08
  4. Step 4: Simplify right side
    128,172.72x = 17,944,324,353.45
  5. Step 5: Solve for x
    x = 17,944,324,353.45/128,172.72
  6. Step 6: Final answer
    x = 140,001.12

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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.