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Finding the Fourth Proportional to 144,314.90, 199,160.72 and 80,652.70

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Solution

The fourth proportional to 144,314.90, 199,160.72 and 80,652.70 is: 111,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,314.90 : 199,160.72 = 80,652.70 : x
  2. Step 2: Convert to fraction form
    144,314.90/199,160.72 = 80,652.70/x
  3. Step 3: Cross multiply
    144,314.90x = 199,160.72 × 80,652.70
  4. Step 4: Simplify right side
    144,314.90x = 16,062,848,402.88
  5. Step 5: Solve for x
    x = 16,062,848,402.88/144,314.90
  6. Step 6: Final answer
    x = 111,304.16

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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.