Home / 129,981.11-194,660.01-70,669.67

Finding the Fourth Proportional to 129,981.11, 194,660.01 and 70,669.67

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Solution

The fourth proportional to 129,981.11, 194,660.01 and 70,669.67 is: 105,835.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981.11 : 194,660.01 = 70,669.67 : x
  2. Step 2: Convert to fraction form
    129,981.11/194,660.01 = 70,669.67/x
  3. Step 3: Cross multiply
    129,981.11x = 194,660.01 × 70,669.67
  4. Step 4: Simplify right side
    129,981.11x = 13,756,557,695.60
  5. Step 5: Solve for x
    x = 13,756,557,695.60/129,981.11
  6. Step 6: Final answer
    x = 105,835.06

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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.