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Finding the Fourth Proportional to 156,333.66, 215,739.72 and 84,713.73

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Solution

The fourth proportional to 156,333.66, 215,739.72 and 84,713.73 is: 116,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,333.66 : 215,739.72 = 84,713.73 : x
  2. Step 2: Convert to fraction form
    156,333.66/215,739.72 = 84,713.73/x
  3. Step 3: Cross multiply
    156,333.66x = 215,739.72 × 84,713.73
  4. Step 4: Simplify right side
    156,333.66x = 18,276,116,390.36
  5. Step 5: Solve for x
    x = 18,276,116,390.36/156,333.66
  6. Step 6: Final answer
    x = 116,904.55

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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.