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Finding the Fourth Proportional to 173,039.40, 259,704.90 and 84,368.70

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Solution

The fourth proportional to 173,039.40, 259,704.90 and 84,368.70 is: 126,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,039.40 : 259,704.90 = 84,368.70 : x
  2. Step 2: Convert to fraction form
    173,039.40/259,704.90 = 84,368.70/x
  3. Step 3: Cross multiply
    173,039.40x = 259,704.90 × 84,368.70
  4. Step 4: Simplify right side
    173,039.40x = 21,910,964,796.63
  5. Step 5: Solve for x
    x = 21,910,964,796.63/173,039.40
  6. Step 6: Final answer
    x = 126,624.14

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1.5x scale

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.