Home / 156,204.36-215,560.89-84,582.72

Finding the Fourth Proportional to 156,204.36, 215,560.89 and 84,582.72

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Solution

The fourth proportional to 156,204.36, 215,560.89 and 84,582.72 is: 116,723.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,204.36 : 215,560.89 = 84,582.72 : x
  2. Step 2: Convert to fraction form
    156,204.36/215,560.89 = 84,582.72/x
  3. Step 3: Cross multiply
    156,204.36x = 215,560.89 × 84,582.72
  4. Step 4: Simplify right side
    156,204.36x = 18,232,726,401.82
  5. Step 5: Solve for x
    x = 18,232,726,401.82/156,204.36
  6. Step 6: Final answer
    x = 116,723.54

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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.