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Finding the Fourth Proportional to 281,103.40, 421,655.10 and 94,114.90

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Solution

The fourth proportional to 281,103.40, 421,655.10 and 94,114.90 is: 141,172.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,103.40 : 421,655.10 = 94,114.90 : x
  2. Step 2: Convert to fraction form
    281,103.40/421,655.10 = 94,114.90/x
  3. Step 3: Cross multiply
    281,103.40x = 421,655.10 × 94,114.90
  4. Step 4: Simplify right side
    281,103.40x = 39,684,027,570.99
  5. Step 5: Solve for x
    x = 39,684,027,570.99/281,103.40
  6. Step 6: Final answer
    x = 141,172.35

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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.