Home / 156,871.36-235,114.26-72,517.42

Finding the Fourth Proportional to 156,871.36, 235,114.26 and 72,517.42

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Solution

The fourth proportional to 156,871.36, 235,114.26 and 72,517.42 is: 108,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,871.36 : 235,114.26 = 72,517.42 : x
  2. Step 2: Convert to fraction form
    156,871.36/235,114.26 = 72,517.42/x
  3. Step 3: Cross multiply
    156,871.36x = 235,114.26 × 72,517.42
  4. Step 4: Simplify right side
    156,871.36x = 17,049,879,540.41
  5. Step 5: Solve for x
    x = 17,049,879,540.41/156,871.36
  6. Step 6: Final answer
    x = 108,687.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.