Home / 156,199.08-215,554.41-84,579.30

Finding the Fourth Proportional to 156,199.08, 215,554.41 and 84,579.30

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Solution

The fourth proportional to 156,199.08, 215,554.41 and 84,579.30 is: 116,719.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,199.08 : 215,554.41 = 84,579.30 : x
  2. Step 2: Convert to fraction form
    156,199.08/215,554.41 = 84,579.30/x
  3. Step 3: Cross multiply
    156,199.08x = 215,554.41 × 84,579.30
  4. Step 4: Simplify right side
    156,199.08x = 18,231,441,109.71
  5. Step 5: Solve for x
    x = 18,231,441,109.71/156,199.08
  6. Step 6: Final answer
    x = 116,719.26

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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.