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Finding the Fourth Proportional to 152,128.80, 227,998.80 and 73,072.80

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Solution

The fourth proportional to 152,128.80, 227,998.80 and 73,072.80 is: 109,515.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,128.80 : 227,998.80 = 73,072.80 : x
  2. Step 2: Convert to fraction form
    152,128.80/227,998.80 = 73,072.80/x
  3. Step 3: Cross multiply
    152,128.80x = 227,998.80 × 73,072.80
  4. Step 4: Simplify right side
    152,128.80x = 16,660,510,712.64
  5. Step 5: Solve for x
    x = 16,660,510,712.64/152,128.80
  6. Step 6: Final answer
    x = 109,515.82

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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.