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Finding the Fourth Proportional to 127,310.43, 175,696.11 and 70,721.67

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Solution

The fourth proportional to 127,310.43, 175,696.11 and 70,721.67 is: 97,600.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,310.43 : 175,696.11 = 70,721.67 : x
  2. Step 2: Convert to fraction form
    127,310.43/175,696.11 = 70,721.67/x
  3. Step 3: Cross multiply
    127,310.43x = 175,696.11 × 70,721.67
  4. Step 4: Simplify right side
    127,310.43x = 12,425,522,311.70
  5. Step 5: Solve for x
    x = 12,425,522,311.70/127,310.43
  6. Step 6: Final answer
    x = 97,600.19

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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.