Home / 143,064,136.20-214,690,682.70-81,653,176.20

Finding the Fourth Proportional to 143,064,136.20, 214,690,682.70 and 81,653,176.20

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Solution

The fourth proportional to 143,064,136.20, 214,690,682.70 and 81,653,176.20 is: 122,533,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,064,136.20 : 214,690,682.70 = 81,653,176.20 : x
  2. Step 2: Convert to fraction form
    143,064,136.20/214,690,682.70 = 81,653,176.20/x
  3. Step 3: Cross multiply
    143,064,136.20x = 214,690,682.70 × 81,653,176.20
  4. Step 4: Simplify right side
    143,064,136.20x = 17,530,176,143,001,392
  5. Step 5: Solve for x
    x = 17,530,176,143,001,392/143,064,136.20
  6. Step 6: Final answer
    x = 122,533,687.40

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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.