Home / 139,977.53-193,168.99-79,548.29

Finding the Fourth Proportional to 139,977.53, 193,168.99 and 79,548.29

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Solution

The fourth proportional to 139,977.53, 193,168.99 and 79,548.29 is: 109,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,977.53 : 193,168.99 = 79,548.29 : x
  2. Step 2: Convert to fraction form
    139,977.53/193,168.99 = 79,548.29/x
  3. Step 3: Cross multiply
    139,977.53x = 193,168.99 × 79,548.29
  4. Step 4: Simplify right side
    139,977.53x = 15,366,262,835.53
  5. Step 5: Solve for x
    x = 15,366,262,835.53/139,977.53
  6. Step 6: Final answer
    x = 109,776.64

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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.