Home / 156,412.10-215,849.80-84,793.26

Finding the Fourth Proportional to 156,412.10, 215,849.80 and 84,793.26

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Solution

The fourth proportional to 156,412.10, 215,849.80 and 84,793.26 is: 117,015.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,412.10 : 215,849.80 = 84,793.26 : x
  2. Step 2: Convert to fraction form
    156,412.10/215,849.80 = 84,793.26/x
  3. Step 3: Cross multiply
    156,412.10x = 215,849.80 × 84,793.26
  4. Step 4: Simplify right side
    156,412.10x = 18,302,608,212.35
  5. Step 5: Solve for x
    x = 18,302,608,212.35/156,412.10
  6. Step 6: Final answer
    x = 117,015.30

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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.