Home / 109,631.20-164,346-39,493.36

Finding the Fourth Proportional to 109,631.20, 164,346 and 39,493.36

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Solution

The fourth proportional to 109,631.20, 164,346 and 39,493.36 is: 59,203.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,631.20 : 164,346 = 39,493.36 : x
  2. Step 2: Convert to fraction form
    109,631.20/164,346 = 39,493.36/x
  3. Step 3: Cross multiply
    109,631.20x = 164,346 × 39,493.36
  4. Step 4: Simplify right side
    109,631.20x = 6,490,575,742.56
  5. Step 5: Solve for x
    x = 6,490,575,742.56/109,631.20
  6. Step 6: Final answer
    x = 59,203.73

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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.