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Finding the Fourth Proportional to 144,900.84, 199,963.50 and 80,374.62

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Solution

The fourth proportional to 144,900.84, 199,963.50 and 80,374.62 is: 110,917.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,900.84 : 199,963.50 = 80,374.62 : x
  2. Step 2: Convert to fraction form
    144,900.84/199,963.50 = 80,374.62/x
  3. Step 3: Cross multiply
    144,900.84x = 199,963.50 × 80,374.62
  4. Step 4: Simplify right side
    144,900.84x = 16,071,990,326.37
  5. Step 5: Solve for x
    x = 16,071,990,326.37/144,900.84
  6. Step 6: Final answer
    x = 110,917.16

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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.