Home / 102,789.54-154,200.92-31,695.57

Finding the Fourth Proportional to 102,789.54, 154,200.92 and 31,695.57

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Solution

The fourth proportional to 102,789.54, 154,200.92 and 31,695.57 is: 47,548.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,789.54 : 154,200.92 = 31,695.57 : x
  2. Step 2: Convert to fraction form
    102,789.54/154,200.92 = 31,695.57/x
  3. Step 3: Cross multiply
    102,789.54x = 154,200.92 × 31,695.57
  4. Step 4: Simplify right side
    102,789.54x = 4,887,485,895.45
  5. Step 5: Solve for x
    x = 4,887,485,895.45/102,789.54
  6. Step 6: Final answer
    x = 47,548.48

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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.