Home / 67,156.10-100,699.48-19,765.03

Finding the Fourth Proportional to 67,156.10, 100,699.48 and 19,765.03

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Solution

The fourth proportional to 67,156.10, 100,699.48 and 19,765.03 is: 29,637.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,156.10 : 100,699.48 = 19,765.03 : x
  2. Step 2: Convert to fraction form
    67,156.10/100,699.48 = 19,765.03/x
  3. Step 3: Cross multiply
    67,156.10x = 100,699.48 × 19,765.03
  4. Step 4: Simplify right side
    67,156.10x = 1,990,328,270.23
  5. Step 5: Solve for x
    x = 1,990,328,270.23/67,156.10
  6. Step 6: Final answer
    x = 29,637.34

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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.