Home / 210,627.20-316,065.60-77,600.96

Finding the Fourth Proportional to 210,627.20, 316,065.60 and 77,600.96

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Solution

The fourth proportional to 210,627.20, 316,065.60 and 77,600.96 is: 116,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,627.20 : 316,065.60 = 77,600.96 : x
  2. Step 2: Convert to fraction form
    210,627.20/316,065.60 = 77,600.96/x
  3. Step 3: Cross multiply
    210,627.20x = 316,065.60 × 77,600.96
  4. Step 4: Simplify right side
    210,627.20x = 24,526,993,982.98
  5. Step 5: Solve for x
    x = 24,526,993,982.98/210,627.20
  6. Step 6: Final answer
    x = 116,447.42

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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.