Home / 131,660.64-196,478.53-117,663.84

Finding the Fourth Proportional to 131,660.64, 196,478.53 and 117,663.84

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Solution

The fourth proportional to 131,660.64, 196,478.53 and 117,663.84 is: 175,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,660.64 : 196,478.53 = 117,663.84 : x
  2. Step 2: Convert to fraction form
    131,660.64/196,478.53 = 117,663.84/x
  3. Step 3: Cross multiply
    131,660.64x = 196,478.53 × 117,663.84
  4. Step 4: Simplify right side
    131,660.64x = 23,118,418,317.36
  5. Step 5: Solve for x
    x = 23,118,418,317.36/131,660.64
  6. Step 6: Final answer
    x = 175,590.96

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.