Home / 117,959.20-162,780.44-64,243.04

Finding the Fourth Proportional to 117,959.20, 162,780.44 and 64,243.04

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Solution

The fourth proportional to 117,959.20, 162,780.44 and 64,243.04 is: 88,653.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,959.20 : 162,780.44 = 64,243.04 : x
  2. Step 2: Convert to fraction form
    117,959.20/162,780.44 = 64,243.04/x
  3. Step 3: Cross multiply
    117,959.20x = 162,780.44 × 64,243.04
  4. Step 4: Simplify right side
    117,959.20x = 10,457,510,318.14
  5. Step 5: Solve for x
    x = 10,457,510,318.14/117,959.20
  6. Step 6: Final answer
    x = 88,653.62

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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.