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Finding the Fourth Proportional to 144,959.35, 200,045.58 and 80,429.80

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Solution

The fourth proportional to 144,959.35, 200,045.58 and 80,429.80 is: 110,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,959.35 : 200,045.58 = 80,429.80 : x
  2. Step 2: Convert to fraction form
    144,959.35/200,045.58 = 80,429.80/x
  3. Step 3: Cross multiply
    144,959.35x = 200,045.58 × 80,429.80
  4. Step 4: Simplify right side
    144,959.35x = 16,089,625,990.28
  5. Step 5: Solve for x
    x = 16,089,625,990.28/144,959.35
  6. Step 6: Final answer
    x = 110,994.05

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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.