Home / 156,741.70-235,112.55-154,408.90

Finding the Fourth Proportional to 156,741.70, 235,112.55 and 154,408.90

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Solution

The fourth proportional to 156,741.70, 235,112.55 and 154,408.90 is: 231,613.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,741.70 : 235,112.55 = 154,408.90 : x
  2. Step 2: Convert to fraction form
    156,741.70/235,112.55 = 154,408.90/x
  3. Step 3: Cross multiply
    156,741.70x = 235,112.55 × 154,408.90
  4. Step 4: Simplify right side
    156,741.70x = 36,303,470,221.70
  5. Step 5: Solve for x
    x = 36,303,470,221.70/156,741.70
  6. Step 6: Final answer
    x = 231,613.35

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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.