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Finding the Fourth Proportional to 189,075.62, 283,613.42 and 129,731.38

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Solution

The fourth proportional to 189,075.62, 283,613.42 and 129,731.38 is: 194,597.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,075.62 : 283,613.42 = 129,731.38 : x
  2. Step 2: Convert to fraction form
    189,075.62/283,613.42 = 129,731.38/x
  3. Step 3: Cross multiply
    189,075.62x = 283,613.42 × 129,731.38
  4. Step 4: Simplify right side
    189,075.62x = 36,793,560,363.12
  5. Step 5: Solve for x
    x = 36,793,560,363.12/189,075.62
  6. Step 6: Final answer
    x = 194,597.06

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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.