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Finding the Fourth Proportional to 187,071.02, 280,647.99 and 53,940.90

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Solution

The fourth proportional to 187,071.02, 280,647.99 and 53,940.90 is: 80,923.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,071.02 : 280,647.99 = 53,940.90 : x
  2. Step 2: Convert to fraction form
    187,071.02/280,647.99 = 53,940.90/x
  3. Step 3: Cross multiply
    187,071.02x = 280,647.99 × 53,940.90
  4. Step 4: Simplify right side
    187,071.02x = 15,138,406,216.22
  5. Step 5: Solve for x
    x = 15,138,406,216.22/187,071.02
  6. Step 6: Final answer
    x = 80,923.31

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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.