Home / 126,176.76-189,539.88-76,280.37

Finding the Fourth Proportional to 126,176.76, 189,539.88 and 76,280.37

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Solution

The fourth proportional to 126,176.76, 189,539.88 and 76,280.37 is: 114,586.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,176.76 : 189,539.88 = 76,280.37 : x
  2. Step 2: Convert to fraction form
    126,176.76/189,539.88 = 76,280.37/x
  3. Step 3: Cross multiply
    126,176.76x = 189,539.88 × 76,280.37
  4. Step 4: Simplify right side
    126,176.76x = 14,458,172,176.16
  5. Step 5: Solve for x
    x = 14,458,172,176.16/126,176.76
  6. Step 6: Final answer
    x = 114,586.65

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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.