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Finding the Fourth Proportional to 112,602, 168,903 and 42,464.91

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Solution

The fourth proportional to 112,602, 168,903 and 42,464.91 is: 63,697.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,602 : 168,903 = 42,464.91 : x
  2. Step 2: Convert to fraction form
    112,602/168,903 = 42,464.91/x
  3. Step 3: Cross multiply
    112,602x = 168,903 × 42,464.91
  4. Step 4: Simplify right side
    112,602x = 7,172,450,693.73
  5. Step 5: Solve for x
    x = 7,172,450,693.73/112,602
  6. Step 6: Final answer
    x = 63,697.37

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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.