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Finding the Fourth Proportional to 160,170.98, 240,186.74 and 85,274.42

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Solution

The fourth proportional to 160,170.98, 240,186.74 and 85,274.42 is: 127,874.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,170.98 : 240,186.74 = 85,274.42 : x
  2. Step 2: Convert to fraction form
    160,170.98/240,186.74 = 85,274.42/x
  3. Step 3: Cross multiply
    160,170.98x = 240,186.74 × 85,274.42
  4. Step 4: Simplify right side
    160,170.98x = 20,481,783,317.89
  5. Step 5: Solve for x
    x = 20,481,783,317.89/160,170.98
  6. Step 6: Final answer
    x = 127,874.50

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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.