Home / 156,890.70-235,531.05-156,171.42

Finding the Fourth Proportional to 156,890.70, 235,531.05 and 156,171.42

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Solution

The fourth proportional to 156,890.70, 235,531.05 and 156,171.42 is: 234,451.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,890.70 : 235,531.05 = 156,171.42 : x
  2. Step 2: Convert to fraction form
    156,890.70/235,531.05 = 156,171.42/x
  3. Step 3: Cross multiply
    156,890.70x = 235,531.05 × 156,171.42
  4. Step 4: Simplify right side
    156,890.70x = 36,783,218,532.59
  5. Step 5: Solve for x
    x = 36,783,218,532.59/156,890.70
  6. Step 6: Final answer
    x = 234,451.24

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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.