Home / 159,134.46-219,597.30-87,512.64

Finding the Fourth Proportional to 159,134.46, 219,597.30 and 87,512.64

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Solution

The fourth proportional to 159,134.46, 219,597.30 and 87,512.64 is: 120,762.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,134.46 : 219,597.30 = 87,512.64 : x
  2. Step 2: Convert to fraction form
    159,134.46/219,597.30 = 87,512.64/x
  3. Step 3: Cross multiply
    159,134.46x = 219,597.30 × 87,512.64
  4. Step 4: Simplify right side
    159,134.46x = 19,217,539,459.87
  5. Step 5: Solve for x
    x = 19,217,539,459.87/159,134.46
  6. Step 6: Final answer
    x = 120,762.90

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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.