Home / 143,446.74-214,710.03-76,720.02

Finding the Fourth Proportional to 143,446.74, 214,710.03 and 76,720.02

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Solution

The fourth proportional to 143,446.74, 214,710.03 and 76,720.02 is: 114,833.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,446.74 : 214,710.03 = 76,720.02 : x
  2. Step 2: Convert to fraction form
    143,446.74/214,710.03 = 76,720.02/x
  3. Step 3: Cross multiply
    143,446.74x = 214,710.03 × 76,720.02
  4. Step 4: Simplify right side
    143,446.74x = 16,472,557,795.80
  5. Step 5: Solve for x
    x = 16,472,557,795.80/143,446.74
  6. Step 6: Final answer
    x = 114,833.96

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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.