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Finding the Fourth Proportional to 99,775.80, 149,882.40 and 73,648.44

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Solution

The fourth proportional to 99,775.80, 149,882.40 and 73,648.44 is: 110,634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,775.80 : 149,882.40 = 73,648.44 : x
  2. Step 2: Convert to fraction form
    99,775.80/149,882.40 = 73,648.44/x
  3. Step 3: Cross multiply
    99,775.80x = 149,882.40 × 73,648.44
  4. Step 4: Simplify right side
    99,775.80x = 11,038,604,943.46
  5. Step 5: Solve for x
    x = 11,038,604,943.46/99,775.80
  6. Step 6: Final answer
    x = 110,634.09

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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.