Home / 139,474.02-192,467.94-79,041.12

Finding the Fourth Proportional to 139,474.02, 192,467.94 and 79,041.12

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Solution

The fourth proportional to 139,474.02, 192,467.94 and 79,041.12 is: 109,073.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,474.02 : 192,467.94 = 79,041.12 : x
  2. Step 2: Convert to fraction form
    139,474.02/192,467.94 = 79,041.12/x
  3. Step 3: Cross multiply
    139,474.02x = 192,467.94 × 79,041.12
  4. Step 4: Simplify right side
    139,474.02x = 15,212,881,541.69
  5. Step 5: Solve for x
    x = 15,212,881,541.69/139,474.02
  6. Step 6: Final answer
    x = 109,073.23

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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.