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Finding the Fourth Proportional to 129,817, 179,148 and 70,201

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Solution

The fourth proportional to 129,817, 179,148 and 70,201 is: 96,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,817 : 179,148 = 70,201 : x
  2. Step 2: Convert to fraction form
    129,817/179,148 = 70,201/x
  3. Step 3: Cross multiply
    129,817x = 179,148 × 70,201
  4. Step 4: Simplify right side
    129,817x = 12,576,368,748
  5. Step 5: Solve for x
    x = 12,576,368,748/129,817
  6. Step 6: Final answer
    x = 96,877.67

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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.