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Finding the Fourth Proportional to 173,142.40, 259,713.60 and 73,269.40

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Solution

The fourth proportional to 173,142.40, 259,713.60 and 73,269.40 is: 109,904.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,142.40 : 259,713.60 = 73,269.40 : x
  2. Step 2: Convert to fraction form
    173,142.40/259,713.60 = 73,269.40/x
  3. Step 3: Cross multiply
    173,142.40x = 259,713.60 × 73,269.40
  4. Step 4: Simplify right side
    173,142.40x = 19,029,059,643.84
  5. Step 5: Solve for x
    x = 19,029,059,643.84/173,142.40
  6. Step 6: Final answer
    x = 109,904.10

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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.