Home / 109,811-164,618.76-39,674.72

Finding the Fourth Proportional to 109,811, 164,618.76 and 39,674.72

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Solution

The fourth proportional to 109,811, 164,618.76 and 39,674.72 is: 59,476.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,811 : 164,618.76 = 39,674.72 : x
  2. Step 2: Convert to fraction form
    109,811/164,618.76 = 39,674.72/x
  3. Step 3: Cross multiply
    109,811x = 164,618.76 × 39,674.72
  4. Step 4: Simplify right side
    109,811x = 6,531,203,209.75
  5. Step 5: Solve for x
    x = 6,531,203,209.75/109,811
  6. Step 6: Final answer
    x = 59,476.77

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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.