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Finding the Fourth Proportional to 188,687.67, 260,384.70 and 108,162.64

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Solution

The fourth proportional to 188,687.67, 260,384.70 and 108,162.64 is: 149,261.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,687.67 : 260,384.70 = 108,162.64 : x
  2. Step 2: Convert to fraction form
    188,687.67/260,384.70 = 108,162.64/x
  3. Step 3: Cross multiply
    188,687.67x = 260,384.70 × 108,162.64
  4. Step 4: Simplify right side
    188,687.67x = 28,163,896,567.61
  5. Step 5: Solve for x
    x = 28,163,896,567.61/188,687.67
  6. Step 6: Final answer
    x = 149,261.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.