Home / 143,621.80-215,531.10-50,127.55

Finding the Fourth Proportional to 143,621.80, 215,531.10 and 50,127.55

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Solution

The fourth proportional to 143,621.80, 215,531.10 and 50,127.55 is: 75,225.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,621.80 : 215,531.10 = 50,127.55 : x
  2. Step 2: Convert to fraction form
    143,621.80/215,531.10 = 50,127.55/x
  3. Step 3: Cross multiply
    143,621.80x = 215,531.10 × 50,127.55
  4. Step 4: Simplify right side
    143,621.80x = 10,804,045,991.81
  5. Step 5: Solve for x
    x = 10,804,045,991.81/143,621.80
  6. Step 6: Final answer
    x = 75,225.67

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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.