Home / 129,411.46-194,125.56-40,668.67

Finding the Fourth Proportional to 129,411.46, 194,125.56 and 40,668.67

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Solution

The fourth proportional to 129,411.46, 194,125.56 and 40,668.67 is: 61,005.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,411.46 : 194,125.56 = 40,668.67 : x
  2. Step 2: Convert to fraction form
    129,411.46/194,125.56 = 40,668.67/x
  3. Step 3: Cross multiply
    129,411.46x = 194,125.56 × 40,668.67
  4. Step 4: Simplify right side
    129,411.46x = 7,894,828,338.21
  5. Step 5: Solve for x
    x = 7,894,828,338.21/129,411.46
  6. Step 6: Final answer
    x = 61,005.64

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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.