Home / 144,298.11-199,127.72-80,636.43

Finding the Fourth Proportional to 144,298.11, 199,127.72 and 80,636.43

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Solution

The fourth proportional to 144,298.11, 199,127.72 and 80,636.43 is: 111,276.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,298.11 : 199,127.72 = 80,636.43 : x
  2. Step 2: Convert to fraction form
    144,298.11/199,127.72 = 80,636.43/x
  3. Step 3: Cross multiply
    144,298.11x = 199,127.72 × 80,636.43
  4. Step 4: Simplify right side
    144,298.11x = 16,056,948,051.66
  5. Step 5: Solve for x
    x = 16,056,948,051.66/144,298.11
  6. Step 6: Final answer
    x = 111,276.22

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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.