Home / 156,977.88-235,526.58-72,778.68

Finding the Fourth Proportional to 156,977.88, 235,526.58 and 72,778.68

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Solution

The fourth proportional to 156,977.88, 235,526.58 and 72,778.68 is: 109,195.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,977.88 : 235,526.58 = 72,778.68 : x
  2. Step 2: Convert to fraction form
    156,977.88/235,526.58 = 72,778.68/x
  3. Step 3: Cross multiply
    156,977.88x = 235,526.58 × 72,778.68
  4. Step 4: Simplify right side
    156,977.88x = 17,141,313,597.31
  5. Step 5: Solve for x
    x = 17,141,313,597.31/156,977.88
  6. Step 6: Final answer
    x = 109,195.73

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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.