Home / 156,483.38-215,945.88-84,863.54

Finding the Fourth Proportional to 156,483.38, 215,945.88 and 84,863.54

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Solution

The fourth proportional to 156,483.38, 215,945.88 and 84,863.54 is: 117,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,483.38 : 215,945.88 = 84,863.54 : x
  2. Step 2: Convert to fraction form
    156,483.38/215,945.88 = 84,863.54/x
  3. Step 3: Cross multiply
    156,483.38x = 215,945.88 × 84,863.54
  4. Step 4: Simplify right side
    156,483.38x = 18,325,931,825.22
  5. Step 5: Solve for x
    x = 18,325,931,825.22/156,483.38
  6. Step 6: Final answer
    x = 117,111.04

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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.