Home / 134,648.43-185,815.32-74,217.77

Finding the Fourth Proportional to 134,648.43, 185,815.32 and 74,217.77

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Solution

The fourth proportional to 134,648.43, 185,815.32 and 74,217.77 is: 102,420.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,648.43 : 185,815.32 = 74,217.77 : x
  2. Step 2: Convert to fraction form
    134,648.43/185,815.32 = 74,217.77/x
  3. Step 3: Cross multiply
    134,648.43x = 185,815.32 × 74,217.77
  4. Step 4: Simplify right side
    134,648.43x = 13,790,798,171.65
  5. Step 5: Solve for x
    x = 13,790,798,171.65/134,648.43
  6. Step 6: Final answer
    x = 102,420.79

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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.