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Finding the Fourth Proportional to 176,420.84, 264,591.36 and 81,599

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Solution

The fourth proportional to 176,420.84, 264,591.36 and 81,599 is: 122,380.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,420.84 : 264,591.36 = 81,599 : x
  2. Step 2: Convert to fraction form
    176,420.84/264,591.36 = 81,599/x
  3. Step 3: Cross multiply
    176,420.84x = 264,591.36 × 81,599
  4. Step 4: Simplify right side
    176,420.84x = 21,590,390,384.64
  5. Step 5: Solve for x
    x = 21,590,390,384.64/176,420.84
  6. Step 6: Final answer
    x = 122,380.05

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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.