Home / 145,207.56-217,709.82-64,115.04

Finding the Fourth Proportional to 145,207.56, 217,709.82 and 64,115.04

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Solution

The fourth proportional to 145,207.56, 217,709.82 and 64,115.04 is: 96,127.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,207.56 : 217,709.82 = 64,115.04 : x
  2. Step 2: Convert to fraction form
    145,207.56/217,709.82 = 64,115.04/x
  3. Step 3: Cross multiply
    145,207.56x = 217,709.82 × 64,115.04
  4. Step 4: Simplify right side
    145,207.56x = 13,958,473,817.69
  5. Step 5: Solve for x
    x = 13,958,473,817.69/145,207.56
  6. Step 6: Final answer
    x = 96,127.73

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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.