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Finding the Fourth Proportional to 188,421.89, 282,687.80 and 76,044.71

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Solution

The fourth proportional to 188,421.89, 282,687.80 and 76,044.71 is: 114,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,421.89 : 282,687.80 = 76,044.71 : x
  2. Step 2: Convert to fraction form
    188,421.89/282,687.80 = 76,044.71/x
  3. Step 3: Cross multiply
    188,421.89x = 282,687.80 × 76,044.71
  4. Step 4: Simplify right side
    188,421.89x = 21,496,909,977.88
  5. Step 5: Solve for x
    x = 21,496,909,977.88/188,421.89
  6. Step 6: Final answer
    x = 114,089.24

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1.5x scale

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.