Home / 129,154.06-193,742.20-35,659.80

Finding the Fourth Proportional to 129,154.06, 193,742.20 and 35,659.80

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Solution

The fourth proportional to 129,154.06, 193,742.20 and 35,659.80 is: 53,492.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,154.06 : 193,742.20 = 35,659.80 : x
  2. Step 2: Convert to fraction form
    129,154.06/193,742.20 = 35,659.80/x
  3. Step 3: Cross multiply
    129,154.06x = 193,742.20 × 35,659.80
  4. Step 4: Simplify right side
    129,154.06x = 6,908,808,103.56
  5. Step 5: Solve for x
    x = 6,908,808,103.56/129,154.06
  6. Step 6: Final answer
    x = 53,492.77

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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.