Home / 156,419.20-234,641.68-51,235.84

Finding the Fourth Proportional to 156,419.20, 234,641.68 and 51,235.84

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Solution

The fourth proportional to 156,419.20, 234,641.68 and 51,235.84 is: 76,857.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,419.20 : 234,641.68 = 51,235.84 : x
  2. Step 2: Convert to fraction form
    156,419.20/234,641.68 = 51,235.84/x
  3. Step 3: Cross multiply
    156,419.20x = 234,641.68 × 51,235.84
  4. Step 4: Simplify right side
    156,419.20x = 12,022,063,573.81
  5. Step 5: Solve for x
    x = 12,022,063,573.81/156,419.20
  6. Step 6: Final answer
    x = 76,857.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.