Home / 156,142.88-234,141.40-56,289.92

Finding the Fourth Proportional to 156,142.88, 234,141.40 and 56,289.92

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Solution

The fourth proportional to 156,142.88, 234,141.40 and 56,289.92 is: 84,408.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,142.88 : 234,141.40 = 56,289.92 : x
  2. Step 2: Convert to fraction form
    156,142.88/234,141.40 = 56,289.92/x
  3. Step 3: Cross multiply
    156,142.88x = 234,141.40 × 56,289.92
  4. Step 4: Simplify right side
    156,142.88x = 13,179,800,674.69
  5. Step 5: Solve for x
    x = 13,179,800,674.69/156,142.88
  6. Step 6: Final answer
    x = 84,408.59

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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.