Home / 143,219.64-214,834.86-54,456.60

Finding the Fourth Proportional to 143,219.64, 214,834.86 and 54,456.60

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Solution

The fourth proportional to 143,219.64, 214,834.86 and 54,456.60 is: 81,686.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,219.64 : 214,834.86 = 54,456.60 : x
  2. Step 2: Convert to fraction form
    143,219.64/214,834.86 = 54,456.60/x
  3. Step 3: Cross multiply
    143,219.64x = 214,834.86 × 54,456.60
  4. Step 4: Simplify right side
    143,219.64x = 11,699,176,037.08
  5. Step 5: Solve for x
    x = 11,699,176,037.08/143,219.64
  6. Step 6: Final answer
    x = 81,686.95

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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.