Home / 129,415.08-194,123.82-40,666.62

Finding the Fourth Proportional to 129,415.08, 194,123.82 and 40,666.62

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Solution

The fourth proportional to 129,415.08, 194,123.82 and 40,666.62 is: 61,000.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,415.08 : 194,123.82 = 40,666.62 : x
  2. Step 2: Convert to fraction form
    129,415.08/194,123.82 = 40,666.62/x
  3. Step 3: Cross multiply
    129,415.08x = 194,123.82 × 40,666.62
  4. Step 4: Simplify right side
    129,415.08x = 7,894,359,620.89
  5. Step 5: Solve for x
    x = 7,894,359,620.89/129,415.08
  6. Step 6: Final answer
    x = 61,000.31

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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.