Home / 143,116.10-214,780.80-54,542.60

Finding the Fourth Proportional to 143,116.10, 214,780.80 and 54,542.60

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Solution

The fourth proportional to 143,116.10, 214,780.80 and 54,542.60 is: 81,854.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,116.10 : 214,780.80 = 54,542.60 : x
  2. Step 2: Convert to fraction form
    143,116.10/214,780.80 = 54,542.60/x
  3. Step 3: Cross multiply
    143,116.10x = 214,780.80 × 54,542.60
  4. Step 4: Simplify right side
    143,116.10x = 11,714,703,262.08
  5. Step 5: Solve for x
    x = 11,714,703,262.08/143,116.10
  6. Step 6: Final answer
    x = 81,854.55

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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.