Home / 156,199.16-215,554.56-84,579.32

Finding the Fourth Proportional to 156,199.16, 215,554.56 and 84,579.32

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Solution

The fourth proportional to 156,199.16, 215,554.56 and 84,579.32 is: 116,719.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,199.16 : 215,554.56 = 84,579.32 : x
  2. Step 2: Convert to fraction form
    156,199.16/215,554.56 = 84,579.32/x
  3. Step 3: Cross multiply
    156,199.16x = 215,554.56 × 84,579.32
  4. Step 4: Simplify right side
    156,199.16x = 18,231,458,107.70
  5. Step 5: Solve for x
    x = 18,231,458,107.70/156,199.16
  6. Step 6: Final answer
    x = 116,719.31

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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.