Home / 143,529.42-215,301.87-43,692.78

Finding the Fourth Proportional to 143,529.42, 215,301.87 and 43,692.78

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Solution

The fourth proportional to 143,529.42, 215,301.87 and 43,692.78 is: 65,541.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,529.42 : 215,301.87 = 43,692.78 : x
  2. Step 2: Convert to fraction form
    143,529.42/215,301.87 = 43,692.78/x
  3. Step 3: Cross multiply
    143,529.42x = 215,301.87 × 43,692.78
  4. Step 4: Simplify right side
    143,529.42x = 9,407,137,239.50
  5. Step 5: Solve for x
    x = 9,407,137,239.50/143,529.42
  6. Step 6: Final answer
    x = 65,541.53

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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.