Home / 187,012.64-280,453.08-53,857.28

Finding the Fourth Proportional to 187,012.64, 280,453.08 and 53,857.28

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Solution

The fourth proportional to 187,012.64, 280,453.08 and 53,857.28 is: 80,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,012.64 : 280,453.08 = 53,857.28 : x
  2. Step 2: Convert to fraction form
    187,012.64/280,453.08 = 53,857.28/x
  3. Step 3: Cross multiply
    187,012.64x = 280,453.08 × 53,857.28
  4. Step 4: Simplify right side
    187,012.64x = 15,104,440,056.42
  5. Step 5: Solve for x
    x = 15,104,440,056.42/187,012.64
  6. Step 6: Final answer
    x = 80,766.95

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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.