Home / 156,028.72-215,318.76-84,408.52

Finding the Fourth Proportional to 156,028.72, 215,318.76 and 84,408.52

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Solution

The fourth proportional to 156,028.72, 215,318.76 and 84,408.52 is: 116,483.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,028.72 : 215,318.76 = 84,408.52 : x
  2. Step 2: Convert to fraction form
    156,028.72/215,318.76 = 84,408.52/x
  3. Step 3: Cross multiply
    156,028.72x = 215,318.76 × 84,408.52
  4. Step 4: Simplify right side
    156,028.72x = 18,174,737,859.84
  5. Step 5: Solve for x
    x = 18,174,737,859.84/156,028.72
  6. Step 6: Final answer
    x = 116,483.28

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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.