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Finding the Fourth Proportional to 114,817.40, 171,918.90 and 73,038.20

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Solution

The fourth proportional to 114,817.40, 171,918.90 and 73,038.20 is: 109,361.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,817.40 : 171,918.90 = 73,038.20 : x
  2. Step 2: Convert to fraction form
    114,817.40/171,918.90 = 73,038.20/x
  3. Step 3: Cross multiply
    114,817.40x = 171,918.90 × 73,038.20
  4. Step 4: Simplify right side
    114,817.40x = 12,556,647,001.98
  5. Step 5: Solve for x
    x = 12,556,647,001.98/114,817.40
  6. Step 6: Final answer
    x = 109,361.88

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1.5x scale

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.