Home / 143,405.28-215,205.93-49,911.03

Finding the Fourth Proportional to 143,405.28, 215,205.93 and 49,911.03

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Solution

The fourth proportional to 143,405.28, 215,205.93 and 49,911.03 is: 74,900.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,405.28 : 215,205.93 = 49,911.03 : x
  2. Step 2: Convert to fraction form
    143,405.28/215,205.93 = 49,911.03/x
  3. Step 3: Cross multiply
    143,405.28x = 215,205.93 × 49,911.03
  4. Step 4: Simplify right side
    143,405.28x = 10,741,149,628.41
  5. Step 5: Solve for x
    x = 10,741,149,628.41/143,405.28
  6. Step 6: Final answer
    x = 74,900.66

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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.