Home / 156,333.29-215,739.20-84,713.36

Finding the Fourth Proportional to 156,333.29, 215,739.20 and 84,713.36

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Solution

The fourth proportional to 156,333.29, 215,739.20 and 84,713.36 is: 116,904.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,333.29 : 215,739.20 = 84,713.36 : x
  2. Step 2: Convert to fraction form
    156,333.29/215,739.20 = 84,713.36/x
  3. Step 3: Cross multiply
    156,333.29x = 215,739.20 × 84,713.36
  4. Step 4: Simplify right side
    156,333.29x = 18,275,991,648.80
  5. Step 5: Solve for x
    x = 18,275,991,648.80/156,333.29
  6. Step 6: Final answer
    x = 116,904.03

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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.