Home / 135,314.28-203,016.50-45,365.88

Finding the Fourth Proportional to 135,314.28, 203,016.50 and 45,365.88

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Solution

The fourth proportional to 135,314.28, 203,016.50 and 45,365.88 is: 68,063.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,314.28 : 203,016.50 = 45,365.88 : x
  2. Step 2: Convert to fraction form
    135,314.28/203,016.50 = 45,365.88/x
  3. Step 3: Cross multiply
    135,314.28x = 203,016.50 × 45,365.88
  4. Step 4: Simplify right side
    135,314.28x = 9,210,021,950.19
  5. Step 5: Solve for x
    x = 9,210,021,950.19/135,314.28
  6. Step 6: Final answer
    x = 68,063.93

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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.