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Finding the Fourth Proportional to 104,788, 144,622.08 and 67,142.44

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Solution

The fourth proportional to 104,788, 144,622.08 and 67,142.44 is: 92,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,788 : 144,622.08 = 67,142.44 : x
  2. Step 2: Convert to fraction form
    104,788/144,622.08 = 67,142.44/x
  3. Step 3: Cross multiply
    104,788x = 144,622.08 × 67,142.44
  4. Step 4: Simplify right side
    104,788x = 9,710,279,329.08
  5. Step 5: Solve for x
    x = 9,710,279,329.08/104,788
  6. Step 6: Final answer
    x = 92,665.95

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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.