Home / 156,028.83-215,319.31-84,408.84

Finding the Fourth Proportional to 156,028.83, 215,319.31 and 84,408.84

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Solution

The fourth proportional to 156,028.83, 215,319.31 and 84,408.84 is: 116,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,028.83 : 215,319.31 = 84,408.84 : x
  2. Step 2: Convert to fraction form
    156,028.83/215,319.31 = 84,408.84/x
  3. Step 3: Cross multiply
    156,028.83x = 215,319.31 × 84,408.84
  4. Step 4: Simplify right side
    156,028.83x = 18,174,852,110.10
  5. Step 5: Solve for x
    x = 18,174,852,110.10/156,028.83
  6. Step 6: Final answer
    x = 116,483.94

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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.