Home / 100,384.20-138,702.24-96,792

Finding the Fourth Proportional to 100,384.20, 138,702.24 and 96,792

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Solution

The fourth proportional to 100,384.20, 138,702.24 and 96,792 is: 133,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,384.20 : 138,702.24 = 96,792 : x
  2. Step 2: Convert to fraction form
    100,384.20/138,702.24 = 96,792/x
  3. Step 3: Cross multiply
    100,384.20x = 138,702.24 × 96,792
  4. Step 4: Simplify right side
    100,384.20x = 13,425,267,214.08
  5. Step 5: Solve for x
    x = 13,425,267,214.08/100,384.20
  6. Step 6: Final answer
    x = 133,738.85

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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.