Home / 154,784.30-213,313.10-120,738.86

Finding the Fourth Proportional to 154,784.30, 213,313.10 and 120,738.86

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Solution

The fourth proportional to 154,784.30, 213,313.10 and 120,738.86 is: 166,394.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,784.30 : 213,313.10 = 120,738.86 : x
  2. Step 2: Convert to fraction form
    154,784.30/213,313.10 = 120,738.86/x
  3. Step 3: Cross multiply
    154,784.30x = 213,313.10 × 120,738.86
  4. Step 4: Simplify right side
    154,784.30x = 25,755,179,752.35
  5. Step 5: Solve for x
    x = 25,755,179,752.35/154,784.30
  6. Step 6: Final answer
    x = 166,394.00

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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.