Home / 198,470.44-273,841.86-112,431.40

Finding the Fourth Proportional to 198,470.44, 273,841.86 and 112,431.40

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Solution

The fourth proportional to 198,470.44, 273,841.86 and 112,431.40 is: 155,128.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,470.44 : 273,841.86 = 112,431.40 : x
  2. Step 2: Convert to fraction form
    198,470.44/273,841.86 = 112,431.40/x
  3. Step 3: Cross multiply
    198,470.44x = 273,841.86 × 112,431.40
  4. Step 4: Simplify right side
    198,470.44x = 30,788,423,698.40
  5. Step 5: Solve for x
    x = 30,788,423,698.40/198,470.44
  6. Step 6: Final answer
    x = 155,128.51

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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.