Home / 144,821.04-199,861.32-81,179.60

Finding the Fourth Proportional to 144,821.04, 199,861.32 and 81,179.60

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Solution

The fourth proportional to 144,821.04, 199,861.32 and 81,179.60 is: 112,032.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,821.04 : 199,861.32 = 81,179.60 : x
  2. Step 2: Convert to fraction form
    144,821.04/199,861.32 = 81,179.60/x
  3. Step 3: Cross multiply
    144,821.04x = 199,861.32 × 81,179.60
  4. Step 4: Simplify right side
    144,821.04x = 16,224,662,013.07
  5. Step 5: Solve for x
    x = 16,224,662,013.07/144,821.04
  6. Step 6: Final answer
    x = 112,032.49

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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.