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Finding the Fourth Proportional to 127,589.70, 176,072.39 and 70,227.80

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Solution

The fourth proportional to 127,589.70, 176,072.39 and 70,227.80 is: 96,913.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,589.70 : 176,072.39 = 70,227.80 : x
  2. Step 2: Convert to fraction form
    127,589.70/176,072.39 = 70,227.80/x
  3. Step 3: Cross multiply
    127,589.70x = 176,072.39 × 70,227.80
  4. Step 4: Simplify right side
    127,589.70x = 12,365,175,358.94
  5. Step 5: Solve for x
    x = 12,365,175,358.94/127,589.70
  6. Step 6: Final answer
    x = 96,913.59

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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.