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Finding the Fourth Proportional to 104,609, 156,948.06 and 42,245.48

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Solution

The fourth proportional to 104,609, 156,948.06 and 42,245.48 is: 63,382.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,609 : 156,948.06 = 42,245.48 : x
  2. Step 2: Convert to fraction form
    104,609/156,948.06 = 42,245.48/x
  3. Step 3: Cross multiply
    104,609x = 156,948.06 × 42,245.48
  4. Step 4: Simplify right side
    104,609x = 6,630,346,129.77
  5. Step 5: Solve for x
    x = 6,630,346,129.77/104,609
  6. Step 6: Final answer
    x = 63,382.18

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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.