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Finding the Fourth Proportional to 156,852, 235,145.70 and 68,038.62

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Solution

The fourth proportional to 156,852, 235,145.70 and 68,038.62 is: 102,000.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,852 : 235,145.70 = 68,038.62 : x
  2. Step 2: Convert to fraction form
    156,852/235,145.70 = 68,038.62/x
  3. Step 3: Cross multiply
    156,852x = 235,145.70 × 68,038.62
  4. Step 4: Simplify right side
    156,852x = 15,998,988,926.93
  5. Step 5: Solve for x
    x = 15,998,988,926.93/156,852
  6. Step 6: Final answer
    x = 102,000.54

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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.