Home / 215,665.20-297,619.92-118,863.72

Finding the Fourth Proportional to 215,665.20, 297,619.92 and 118,863.72

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Solution

The fourth proportional to 215,665.20, 297,619.92 and 118,863.72 is: 164,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,665.20 : 297,619.92 = 118,863.72 : x
  2. Step 2: Convert to fraction form
    215,665.20/297,619.92 = 118,863.72/x
  3. Step 3: Cross multiply
    215,665.20x = 297,619.92 × 118,863.72
  4. Step 4: Simplify right side
    215,665.20x = 35,376,210,837.30
  5. Step 5: Solve for x
    x = 35,376,210,837.30/215,665.20
  6. Step 6: Final answer
    x = 164,033.01

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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.