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Finding the Fourth Proportional to 106,504.80, 159,886.80 and 80,001.60

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Solution

The fourth proportional to 106,504.80, 159,886.80 and 80,001.60 is: 120,099.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,504.80 : 159,886.80 = 80,001.60 : x
  2. Step 2: Convert to fraction form
    106,504.80/159,886.80 = 80,001.60/x
  3. Step 3: Cross multiply
    106,504.80x = 159,886.80 × 80,001.60
  4. Step 4: Simplify right side
    106,504.80x = 12,791,199,818.88
  5. Step 5: Solve for x
    x = 12,791,199,818.88/106,504.80
  6. Step 6: Final answer
    x = 120,099.75

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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.