Home / 143,231,026.11-214,693,576.25-81,687,667.16

Finding the Fourth Proportional to 143,231,026.11, 214,693,576.25 and 81,687,667.16

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Solution

The fourth proportional to 143,231,026.11, 214,693,576.25 and 81,687,667.16 is: 122,444,262.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,231,026.11 : 214,693,576.25 = 81,687,667.16 : x
  2. Step 2: Convert to fraction form
    143,231,026.11/214,693,576.25 = 81,687,667.16/x
  3. Step 3: Cross multiply
    143,231,026.11x = 214,693,576.25 × 81,687,667.16
  4. Step 4: Simplify right side
    143,231,026.11x = 17,537,817,396,618,176
  5. Step 5: Solve for x
    x = 17,537,817,396,618,176/143,231,026.11
  6. Step 6: Final answer
    x = 122,444,262.76

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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.