Home / 129,666.46-194,499.72-40,926.88

Finding the Fourth Proportional to 129,666.46, 194,499.72 and 40,926.88

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Solution

The fourth proportional to 129,666.46, 194,499.72 and 40,926.88 is: 61,390.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,666.46 : 194,499.72 = 40,926.88 : x
  2. Step 2: Convert to fraction form
    129,666.46/194,499.72 = 40,926.88/x
  3. Step 3: Cross multiply
    129,666.46x = 194,499.72 × 40,926.88
  4. Step 4: Simplify right side
    129,666.46x = 7,960,266,700.47
  5. Step 5: Solve for x
    x = 7,960,266,700.47/129,666.46
  6. Step 6: Final answer
    x = 61,390.33

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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.