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Finding the Fourth Proportional to 145,375.68, 218,063.52 and 45,536.70

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Solution

The fourth proportional to 145,375.68, 218,063.52 and 45,536.70 is: 68,305.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,375.68 : 218,063.52 = 45,536.70 : x
  2. Step 2: Convert to fraction form
    145,375.68/218,063.52 = 45,536.70/x
  3. Step 3: Cross multiply
    145,375.68x = 218,063.52 × 45,536.70
  4. Step 4: Simplify right side
    145,375.68x = 9,929,893,091.18
  5. Step 5: Solve for x
    x = 9,929,893,091.18/145,375.68
  6. Step 6: Final answer
    x = 68,305.05

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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.