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Finding the Fourth Proportional to 129,941, 179,318.68 and 70,325

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Solution

The fourth proportional to 129,941, 179,318.68 and 70,325 is: 97,048.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,941 : 179,318.68 = 70,325 : x
  2. Step 2: Convert to fraction form
    129,941/179,318.68 = 70,325/x
  3. Step 3: Cross multiply
    129,941x = 179,318.68 × 70,325
  4. Step 4: Simplify right side
    129,941x = 12,610,586,171
  5. Step 5: Solve for x
    x = 12,610,586,171/129,941
  6. Step 6: Final answer
    x = 97,048.55

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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.