Home / 156,639.96-234,958.50-38,311.80

Finding the Fourth Proportional to 156,639.96, 234,958.50 and 38,311.80

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Solution

The fourth proportional to 156,639.96, 234,958.50 and 38,311.80 is: 57,467.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,639.96 : 234,958.50 = 38,311.80 : x
  2. Step 2: Convert to fraction form
    156,639.96/234,958.50 = 38,311.80/x
  3. Step 3: Cross multiply
    156,639.96x = 234,958.50 × 38,311.80
  4. Step 4: Simplify right side
    156,639.96x = 9,001,683,060.30
  5. Step 5: Solve for x
    x = 9,001,683,060.30/156,639.96
  6. Step 6: Final answer
    x = 57,467.35

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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.