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Finding the Fourth Proportional to 144,356.10, 199,215.82 and 80,696.58

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Solution

The fourth proportional to 144,356.10, 199,215.82 and 80,696.58 is: 111,363.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,356.10 : 199,215.82 = 80,696.58 : x
  2. Step 2: Convert to fraction form
    144,356.10/199,215.82 = 80,696.58/x
  3. Step 3: Cross multiply
    144,356.10x = 199,215.82 × 80,696.58
  4. Step 4: Simplify right side
    144,356.10x = 16,076,035,355.90
  5. Step 5: Solve for x
    x = 16,076,035,355.90/144,356.10
  6. Step 6: Final answer
    x = 111,363.74

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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.