Home / 129,438.16-194,157.08-40,699.42

Finding the Fourth Proportional to 129,438.16, 194,157.08 and 40,699.42

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Solution

The fourth proportional to 129,438.16, 194,157.08 and 40,699.42 is: 61,049.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,438.16 : 194,157.08 = 40,699.42 : x
  2. Step 2: Convert to fraction form
    129,438.16/194,157.08 = 40,699.42/x
  3. Step 3: Cross multiply
    129,438.16x = 194,157.08 × 40,699.42
  4. Step 4: Simplify right side
    129,438.16x = 7,902,080,544.89
  5. Step 5: Solve for x
    x = 7,902,080,544.89/129,438.16
  6. Step 6: Final answer
    x = 61,049.08

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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.