Home / 143,385.64-214,938.30-64,519.72

Finding the Fourth Proportional to 143,385.64, 214,938.30 and 64,519.72

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Solution

The fourth proportional to 143,385.64, 214,938.30 and 64,519.72 is: 96,716.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,385.64 : 214,938.30 = 64,519.72 : x
  2. Step 2: Convert to fraction form
    143,385.64/214,938.30 = 64,519.72/x
  3. Step 3: Cross multiply
    143,385.64x = 214,938.30 × 64,519.72
  4. Step 4: Simplify right side
    143,385.64x = 13,867,758,933.28
  5. Step 5: Solve for x
    x = 13,867,758,933.28/143,385.64
  6. Step 6: Final answer
    x = 96,716.51

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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.