Home / 156,329.31-215,735.20-84,709.46

Finding the Fourth Proportional to 156,329.31, 215,735.20 and 84,709.46

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Solution

The fourth proportional to 156,329.31, 215,735.20 and 84,709.46 is: 116,899.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,329.31 : 215,735.20 = 84,709.46 : x
  2. Step 2: Convert to fraction form
    156,329.31/215,735.20 = 84,709.46/x
  3. Step 3: Cross multiply
    156,329.31x = 215,735.20 × 84,709.46
  4. Step 4: Simplify right side
    156,329.31x = 18,274,811,871.44
  5. Step 5: Solve for x
    x = 18,274,811,871.44/156,329.31
  6. Step 6: Final answer
    x = 116,899.46

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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.