Home / 126,073.12-188,775.60-76,086.40

Finding the Fourth Proportional to 126,073.12, 188,775.60 and 76,086.40

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Solution

The fourth proportional to 126,073.12, 188,775.60 and 76,086.40 is: 113,927.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,073.12 : 188,775.60 = 76,086.40 : x
  2. Step 2: Convert to fraction form
    126,073.12/188,775.60 = 76,086.40/x
  3. Step 3: Cross multiply
    126,073.12x = 188,775.60 × 76,086.40
  4. Step 4: Simplify right side
    126,073.12x = 14,363,255,811.84
  5. Step 5: Solve for x
    x = 14,363,255,811.84/126,073.12
  6. Step 6: Final answer
    x = 113,927.98

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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.