Home / 156,134.19-215,409.20-89,027.31

Finding the Fourth Proportional to 156,134.19, 215,409.20 and 89,027.31

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Solution

The fourth proportional to 156,134.19, 215,409.20 and 89,027.31 is: 122,825.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,134.19 : 215,409.20 = 89,027.31 : x
  2. Step 2: Convert to fraction form
    156,134.19/215,409.20 = 89,027.31/x
  3. Step 3: Cross multiply
    156,134.19x = 215,409.20 × 89,027.31
  4. Step 4: Simplify right side
    156,134.19x = 19,177,301,180.12
  5. Step 5: Solve for x
    x = 19,177,301,180.12/156,134.19
  6. Step 6: Final answer
    x = 122,825.76

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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.