Home / 113,206.70-156,176.79-70,691.42

Finding the Fourth Proportional to 113,206.70, 156,176.79 and 70,691.42

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Solution

The fourth proportional to 113,206.70, 156,176.79 and 70,691.42 is: 97,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,206.70 : 156,176.79 = 70,691.42 : x
  2. Step 2: Convert to fraction form
    113,206.70/156,176.79 = 70,691.42/x
  3. Step 3: Cross multiply
    113,206.70x = 156,176.79 × 70,691.42
  4. Step 4: Simplify right side
    113,206.70x = 11,040,359,056.14
  5. Step 5: Solve for x
    x = 11,040,359,056.14/113,206.70
  6. Step 6: Final answer
    x = 97,523.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.