Home / 143,154.72-214,701.30-54,377.10

Finding the Fourth Proportional to 143,154.72, 214,701.30 and 54,377.10

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Solution

The fourth proportional to 143,154.72, 214,701.30 and 54,377.10 is: 81,553.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,154.72 : 214,701.30 = 54,377.10 : x
  2. Step 2: Convert to fraction form
    143,154.72/214,701.30 = 54,377.10/x
  3. Step 3: Cross multiply
    143,154.72x = 214,701.30 × 54,377.10
  4. Step 4: Simplify right side
    143,154.72x = 11,674,834,060.23
  5. Step 5: Solve for x
    x = 11,674,834,060.23/143,154.72
  6. Step 6: Final answer
    x = 81,553.96

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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.