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Finding the Fourth Proportional to 143,374.44, 214,432.86 and 127,690.12

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Solution

The fourth proportional to 143,374.44, 214,432.86 and 127,690.12 is: 190,975.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,374.44 : 214,432.86 = 127,690.12 : x
  2. Step 2: Convert to fraction form
    143,374.44/214,432.86 = 127,690.12/x
  3. Step 3: Cross multiply
    143,374.44x = 214,432.86 × 127,690.12
  4. Step 4: Simplify right side
    143,374.44x = 27,380,957,625.34
  5. Step 5: Solve for x
    x = 27,380,957,625.34/143,374.44
  6. Step 6: Final answer
    x = 190,975.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.