Home / 154,311.92-231,090.42-139,352.84

Finding the Fourth Proportional to 154,311.92, 231,090.42 and 139,352.84

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Solution

The fourth proportional to 154,311.92, 231,090.42 and 139,352.84 is: 208,688.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,311.92 : 231,090.42 = 139,352.84 : x
  2. Step 2: Convert to fraction form
    154,311.92/231,090.42 = 139,352.84/x
  3. Step 3: Cross multiply
    154,311.92x = 231,090.42 × 139,352.84
  4. Step 4: Simplify right side
    154,311.92x = 32,203,106,323.79
  5. Step 5: Solve for x
    x = 32,203,106,323.79/154,311.92
  6. Step 6: Final answer
    x = 208,688.39

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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.