Home / 99,174.78-148,778.64-40,005.50

Finding the Fourth Proportional to 99,174.78, 148,778.64 and 40,005.50

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Solution

The fourth proportional to 99,174.78, 148,778.64 and 40,005.50 is: 60,014.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,174.78 : 148,778.64 = 40,005.50 : x
  2. Step 2: Convert to fraction form
    99,174.78/148,778.64 = 40,005.50/x
  3. Step 3: Cross multiply
    99,174.78x = 148,778.64 × 40,005.50
  4. Step 4: Simplify right side
    99,174.78x = 5,951,963,138.63
  5. Step 5: Solve for x
    x = 5,951,963,138.63/99,174.78
  6. Step 6: Final answer
    x = 60,014.89

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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.