Home / 131,455.20-197,182.80-117,631.20

Finding the Fourth Proportional to 131,455.20, 197,182.80 and 117,631.20

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Solution

The fourth proportional to 131,455.20, 197,182.80 and 117,631.20 is: 176,446.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,455.20 : 197,182.80 = 117,631.20 : x
  2. Step 2: Convert to fraction form
    131,455.20/197,182.80 = 117,631.20/x
  3. Step 3: Cross multiply
    131,455.20x = 197,182.80 × 117,631.20
  4. Step 4: Simplify right side
    131,455.20x = 23,194,849,383.36
  5. Step 5: Solve for x
    x = 23,194,849,383.36/131,455.20
  6. Step 6: Final answer
    x = 176,446.80

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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.