Home / 129,226.61-194,061.35-70,177.61

Finding the Fourth Proportional to 129,226.61, 194,061.35 and 70,177.61

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Solution

The fourth proportional to 129,226.61, 194,061.35 and 70,177.61 is: 105,386.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,226.61 : 194,061.35 = 70,177.61 : x
  2. Step 2: Convert to fraction form
    129,226.61/194,061.35 = 70,177.61/x
  3. Step 3: Cross multiply
    129,226.61x = 194,061.35 × 70,177.61
  4. Step 4: Simplify right side
    129,226.61x = 13,618,762,396.97
  5. Step 5: Solve for x
    x = 13,618,762,396.97/129,226.61
  6. Step 6: Final answer
    x = 105,386.67

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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.