Home / 156,669.76-235,037.20-71,239.92

Finding the Fourth Proportional to 156,669.76, 235,037.20 and 71,239.92

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Solution

The fourth proportional to 156,669.76, 235,037.20 and 71,239.92 is: 106,874.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,669.76 : 235,037.20 = 71,239.92 : x
  2. Step 2: Convert to fraction form
    156,669.76/235,037.20 = 71,239.92/x
  3. Step 3: Cross multiply
    156,669.76x = 235,037.20 × 71,239.92
  4. Step 4: Simplify right side
    156,669.76x = 16,744,031,325.02
  5. Step 5: Solve for x
    x = 16,744,031,325.02/156,669.76
  6. Step 6: Final answer
    x = 106,874.69

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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.