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Finding the Fourth Proportional to 156,333, 215,739.54 and 84,712.44

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Solution

The fourth proportional to 156,333, 215,739.54 and 84,712.44 is: 116,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,333 : 215,739.54 = 84,712.44 : x
  2. Step 2: Convert to fraction form
    156,333/215,739.54 = 84,712.44/x
  3. Step 3: Cross multiply
    156,333x = 215,739.54 × 84,712.44
  4. Step 4: Simplify right side
    156,333x = 18,275,822,837.88
  5. Step 5: Solve for x
    x = 18,275,822,837.88/156,333
  6. Step 6: Final answer
    x = 116,903.17

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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.