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Finding the Fourth Proportional to 139,477.02, 192,477.51 and 79,059.09

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Solution

The fourth proportional to 139,477.02, 192,477.51 and 79,059.09 is: 109,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,477.02 : 192,477.51 = 79,059.09 : x
  2. Step 2: Convert to fraction form
    139,477.02/192,477.51 = 79,059.09/x
  3. Step 3: Cross multiply
    139,477.02x = 192,477.51 × 79,059.09
  4. Step 4: Simplify right side
    139,477.02x = 15,217,096,786.07
  5. Step 5: Solve for x
    x = 15,217,096,786.07/139,477.02
  6. Step 6: Final answer
    x = 109,101.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.