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Finding the Fourth Proportional to 129,716, 179,008.08 and 70,100

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Solution

The fourth proportional to 129,716, 179,008.08 and 70,100 is: 96,738

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,716 : 179,008.08 = 70,100 : x
  2. Step 2: Convert to fraction form
    129,716/179,008.08 = 70,100/x
  3. Step 3: Cross multiply
    129,716x = 179,008.08 × 70,100
  4. Step 4: Simplify right side
    129,716x = 12,548,466,408
  5. Step 5: Solve for x
    x = 12,548,466,408/129,716
  6. Step 6: Final answer
    x = 96,738

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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.