Home / 154,455.56-213,085.33-93,977.72

Finding the Fourth Proportional to 154,455.56, 213,085.33 and 93,977.72

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Solution

The fourth proportional to 154,455.56, 213,085.33 and 93,977.72 is: 129,650.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,455.56 : 213,085.33 = 93,977.72 : x
  2. Step 2: Convert to fraction form
    154,455.56/213,085.33 = 93,977.72/x
  3. Step 3: Cross multiply
    154,455.56x = 213,085.33 × 93,977.72
  4. Step 4: Simplify right side
    154,455.56x = 20,025,273,478.85
  5. Step 5: Solve for x
    x = 20,025,273,478.85/154,455.56
  6. Step 6: Final answer
    x = 129,650.71

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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.