Home / 156,259.82-215,637.03-84,635.57

Finding the Fourth Proportional to 156,259.82, 215,637.03 and 84,635.57

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Solution

The fourth proportional to 156,259.82, 215,637.03 and 84,635.57 is: 116,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,259.82 : 215,637.03 = 84,635.57 : x
  2. Step 2: Convert to fraction form
    156,259.82/215,637.03 = 84,635.57/x
  3. Step 3: Cross multiply
    156,259.82x = 215,637.03 × 84,635.57
  4. Step 4: Simplify right side
    156,259.82x = 18,250,561,868.97
  5. Step 5: Solve for x
    x = 18,250,561,868.97/156,259.82
  6. Step 6: Final answer
    x = 116,796.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.