Home / 156,342.24-215,751.72-84,724

Finding the Fourth Proportional to 156,342.24, 215,751.72 and 84,724

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Solution

The fourth proportional to 156,342.24, 215,751.72 and 84,724 is: 116,918.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,342.24 : 215,751.72 = 84,724 : x
  2. Step 2: Convert to fraction form
    156,342.24/215,751.72 = 84,724/x
  3. Step 3: Cross multiply
    156,342.24x = 215,751.72 × 84,724
  4. Step 4: Simplify right side
    156,342.24x = 18,279,348,725.28
  5. Step 5: Solve for x
    x = 18,279,348,725.28/156,342.24
  6. Step 6: Final answer
    x = 116,918.81

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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.