Home / 156,744.40-235,116.60-133,124.80

Finding the Fourth Proportional to 156,744.40, 235,116.60 and 133,124.80

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Solution

The fourth proportional to 156,744.40, 235,116.60 and 133,124.80 is: 199,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,744.40 : 235,116.60 = 133,124.80 : x
  2. Step 2: Convert to fraction form
    156,744.40/235,116.60 = 133,124.80/x
  3. Step 3: Cross multiply
    156,744.40x = 235,116.60 × 133,124.80
  4. Step 4: Simplify right side
    156,744.40x = 31,299,850,351.68
  5. Step 5: Solve for x
    x = 31,299,850,351.68/156,744.40
  6. Step 6: Final answer
    x = 199,687.20

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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.