Home / 203,925.85-281,409.84-113,287.51

Finding the Fourth Proportional to 203,925.85, 281,409.84 and 113,287.51

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Solution

The fourth proportional to 203,925.85, 281,409.84 and 113,287.51 is: 156,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,925.85 : 281,409.84 = 113,287.51 : x
  2. Step 2: Convert to fraction form
    203,925.85/281,409.84 = 113,287.51/x
  3. Step 3: Cross multiply
    203,925.85x = 281,409.84 × 113,287.51
  4. Step 4: Simplify right side
    203,925.85x = 31,880,220,063.10
  5. Step 5: Solve for x
    x = 31,880,220,063.10/203,925.85
  6. Step 6: Final answer
    x = 156,332.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.