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Finding the Fourth Proportional to 183,139.91, 274,803.63 and 87,185.72

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Solution

The fourth proportional to 183,139.91, 274,803.63 and 87,185.72 is: 130,823.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,139.91 : 274,803.63 = 87,185.72 : x
  2. Step 2: Convert to fraction form
    183,139.91/274,803.63 = 87,185.72/x
  3. Step 3: Cross multiply
    183,139.91x = 274,803.63 × 87,185.72
  4. Step 4: Simplify right side
    183,139.91x = 23,958,950,530.22
  5. Step 5: Solve for x
    x = 23,958,950,530.22/183,139.91
  6. Step 6: Final answer
    x = 130,823.21

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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.