Home / 156,485.05-215,960.08-88,502.04

Finding the Fourth Proportional to 156,485.05, 215,960.08 and 88,502.04

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Solution

The fourth proportional to 156,485.05, 215,960.08 and 88,502.04 is: 122,138.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,485.05 : 215,960.08 = 88,502.04 : x
  2. Step 2: Convert to fraction form
    156,485.05/215,960.08 = 88,502.04/x
  3. Step 3: Cross multiply
    156,485.05x = 215,960.08 × 88,502.04
  4. Step 4: Simplify right side
    156,485.05x = 19,112,907,638.56
  5. Step 5: Solve for x
    x = 19,112,907,638.56/156,485.05
  6. Step 6: Final answer
    x = 122,138.87

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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.