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Finding the Fourth Proportional to 187,718.99, 281,578.86 and 45,563.67

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Solution

The fourth proportional to 187,718.99, 281,578.86 and 45,563.67 is: 68,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,718.99 : 281,578.86 = 45,563.67 : x
  2. Step 2: Convert to fraction form
    187,718.99/281,578.86 = 45,563.67/x
  3. Step 3: Cross multiply
    187,718.99x = 281,578.86 × 45,563.67
  4. Step 4: Simplify right side
    187,718.99x = 12,829,766,256.02
  5. Step 5: Solve for x
    x = 12,829,766,256.02/187,718.99
  6. Step 6: Final answer
    x = 68,345.60

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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.