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Finding the Fourth Proportional to 136,015.80, 204,042.90 and 42,511.80

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Solution

The fourth proportional to 136,015.80, 204,042.90 and 42,511.80 is: 63,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,015.80 : 204,042.90 = 42,511.80 : x
  2. Step 2: Convert to fraction form
    136,015.80/204,042.90 = 42,511.80/x
  3. Step 3: Cross multiply
    136,015.80x = 204,042.90 × 42,511.80
  4. Step 4: Simplify right side
    136,015.80x = 8,674,230,956.22
  5. Step 5: Solve for x
    x = 8,674,230,956.22/136,015.80
  6. Step 6: Final answer
    x = 63,773.70

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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.