Home / 156,022.48-215,309.92-84,401.44

Finding the Fourth Proportional to 156,022.48, 215,309.92 and 84,401.44

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Solution

The fourth proportional to 156,022.48, 215,309.92 and 84,401.44 is: 116,473.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,022.48 : 215,309.92 = 84,401.44 : x
  2. Step 2: Convert to fraction form
    156,022.48/215,309.92 = 84,401.44/x
  3. Step 3: Cross multiply
    156,022.48x = 215,309.92 × 84,401.44
  4. Step 4: Simplify right side
    156,022.48x = 18,172,467,294.28
  5. Step 5: Solve for x
    x = 18,172,467,294.28/156,022.48
  6. Step 6: Final answer
    x = 116,473.39

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1.5x scale

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.