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Finding the Fourth Proportional to 114,954, 172,264.08 and 81,740.88

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Solution

The fourth proportional to 114,954, 172,264.08 and 81,740.88 is: 122,492.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,954 : 172,264.08 = 81,740.88 : x
  2. Step 2: Convert to fraction form
    114,954/172,264.08 = 81,740.88/x
  3. Step 3: Cross multiply
    114,954x = 172,264.08 × 81,740.88
  4. Step 4: Simplify right side
    114,954x = 14,081,017,491.59
  5. Step 5: Solve for x
    x = 14,081,017,491.59/114,954
  6. Step 6: Final answer
    x = 122,492.63

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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.